Maka or MAKA may refer to: Culture, languages, and people Maká, a Native American people in Paraguay Maká language, spoken by the Maká Maka (name), including a list of people and fictional chara
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e75a4e02a6be120ef6005aaa97baae17108a909c6e065ec82dcbb985ef0a2b8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8029723b-3741-4978-b539-c2dd3f98bc83.json and https://artists.proofprofile.net/proofs/artist/8029723b-3741-4978-b539-c2dd3f98bc83.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece3af7ecbb4e3c330b48a61faa4fd226e63398e51662c9ae393d4b1ee0f855f. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19da996bffae44a77dbf7b687ef4e9366bee84e677435e9b80abae2c202593f6. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c71bf9704f28b13c7c2e3cfd1ed3145aa61dced504f6fd62026314caf69dac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6662d7c03b738653dc1a7c79351a248977dd369aa6bb15f101a797b04c0f90a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe563b8d07fb9e8d3d807b24fd19d8fcc5aaf229d5e4b7dc37a2f324c0b506d64. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3624d01bf787b0084cdbbb9161e6ac4ea13b6460290425b6aa0e6238598d10d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef534c8de37906e15fdfe7a4fceef60c2479ee3e1bf6cab1ce6800be94bdf502. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f87e682443c6f73fd18c116838a08674317658f4f3221a2430eabf0963a826. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70f49b80da45136b3e385afec87ed8ebf958524315cde61b1d30948760203ae. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:25:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8fb88516725457f5efecc576b32ad3a9f3ad13f59a5e76ac52f21a10997225. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80521e11449726ba21c57a7c5b01e3742eb69986ddb45352ed6bddd2b11abb73. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7806ac34e35f4e200b48d60adb5af96742aa60c7250ea9413491b646ae7d5418. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67d1ccf6a4e57d9770e8ca7da85b29778a0576cabfc1bd6da907a106331b5dc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd3f9d30a2975c0e0714d9f88cbba698756b291eecde31552d45d6dea144ca. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e3f5d60e978cb885728e2463be749376fd7cce7686c5e743e6d359b3610022. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:09:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878f8b99f9b09da4f50efe6a630c9bc91121d1f563bd3c976d67d3201018f5a8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5fec6205cb0e5cd749ee5ae3c5b49862930e639ce94948cf821f98e2b9a27e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T00:06:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7890db5e4e50bfec475aeb518c1662981d5b7080b49ef87aa6c645cf4f221acc. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1616108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4739ca691fb1a879134817dd4c67168bf5067237e492ba0dbf37d2cf82487ad6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e945285c1f70d721b29824d83c2b63bf569c68c08e5032bff79d94bc23807b7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a28fdc61a91529ed2c8244da241a250ab20bde80e3039e9cbacc5f74e6129c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050536833b20d97e757df1037082b172fd903d55998158b2ed83019b465ec3fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425e276bd8f36885c83a2004dc3bb8e348f05d5c6bac40d90e84319ea9cece96. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:20:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b6324dd406067182de72ec3eba97541ae2d90d39201d56e73e70669efed3e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e47b2b1702be5a1eae4d19356fea6c3bcb90921dcef3f403be6df986635486. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1618024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821143b76fa5ef936ff000c672c90a7659d153fca2906d93f35bb4365188285b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:56:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1633597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15efb542a3a13f296964a68c1726ad692e359c5914de8a417cda5d2d75380e70. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1633598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebe63bf2e867d4e57e52e7d22273a9f951bc4f091df9b9e321dd89905b01d48. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1700271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f8763a0cfe67128738d1b4f3836fb749c3b5f8fa34591703f3aa10f929dab0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2004530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f0e522257c0a59515742089ba8d78679c99dc201ed58d02da76b6b2362f3fb. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:45:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2037760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f48b60816299f64099c28a5069e861c4cfb7c298343d1d51c7041ffb4a97e6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:58:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2009253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57e03405bd38d8efd80e0c15510cd271ca60b441550a446c95348301f1d5ed4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92047458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19ce9d7b77b557c3999e80709876c97d2f6713ccf17837558683b1597d4691e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:19:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2062231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088439df6e7226127534844c66d09f4e12a76fe7146a730312bce9ddf7574494. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92119679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a48c6bc7dfac221c7c624a1bd11a6e05e9167e51bfb2117c78b890073b5f672. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee420deb62fc33a6d41ab888a920e2a7550a7aac8eece215330f109859d161ac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6fcd68b1e51bd200c2a5a75373330833b32363253b0db153eabff0e8d66c86. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2158238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4353512589e42235baa49c55d4be60cdfa3ba520f990611443e5990e18e72618. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c1d48b6c9b823a47d02ceab698e5691d9e1991664cd7aff378ddb6ec3420c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62149084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd1b004e0a02f6a45541799796e263fe0c1c90901fa2fa780a9ed17873069318. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62122613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49db515682da1ae33beb11116c28a84390b3c44991d8cd6e602a27bfa07dd8a8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbb6c03a851bb4776d0d53f8e9a4fafa6c2d3793c186bda9a569e89b9e8cb87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf03d3df530b34434883a5e8737f752fef9d42dd5816c59e78258ec6b496020e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93953311f8af7805e02ed9d8b4578daf84aa1670fb323cb130922659f78d4edb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1be98a35e38cedefa820ad9b600ea9832ad7dbdeab8643fddc2353bddd8e91. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62161497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4f4c51fa5e8c95956a0e345abf60707828921823a5c28bc1fa7f984f8614bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2345272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0523103fb7bb024f776fb2be67cb51dc8b27959b56155ac2c532d8f85e0256e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011709705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a16dfd41883d1793b95fa55bf80bb9a99e57364d42c170d6050dfee070105d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5702201711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00cf4a90716922b79039781ea7b1b50866b5cc9ad6444518c6a18908d9c491e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES5022000289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbe292bb2fa1b29ba86ea1f9899b5ce8101022dc1b27524d91616ad8017d835. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2085927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb419f6799a4e8468f82c30a37c4ae0640c77c53418f27563150ccf62b497892. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2085928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7690841fedce29f8306a14d5e1d0e49db4eb219f7558ef92e06c7f6e3b52b79a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2085934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e37e681443c1c5b2b09519424328796ef79322ab28aaa331a088fd18fedf58. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2085935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbca43ba539b95ab98d4fec414d442ab1285b09660513ffe52ff784e74b5bcb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2364997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1388a70229283ed24f8ed470daee66d2987d76c8b0c8c2f49d0b86c64b2a5c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2412400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1388a70229283ed24f8ed470daee66d2987d76c8b0c8c2f49d0b86c64b2a5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2412400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1601dfb8013a9ec32a41070da99fee2faefa934c465f153cb731495bc8429676. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESUM72302928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c15db46e114db59abec7086bee31f68ae88a6aba37c7029213c3524a6fb1378. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011718783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f7f664fe32c675fdb89519fa2de567e471349c5df231a02508e63067e842c7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES6671703156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e12d2f35dc66bb3f6ec62ab67543a57a960c7a788e477b200cad798aabf3b5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX2125572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94029a264c8839a84b79f2fd18dcd7d2fe55a07204dcf126feb1f16fe6b8b989. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2077715.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch