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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7dfecb8bca16c1251a59940cd53dd2c39633f95e77246ea6351394cd270340. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5a46b4-d3c7-4137-938f-ef3e37c6019b.json and https://artists.proofprofile.net/proofs/artist/fe5a46b4-d3c7-4137-938f-ef3e37c6019b.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f536bf7589d6ab4a9f45685a526e452c1239d87c95a23670c25c621b2bdb86c. 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/US83Z1903391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37890492f224e794e81198a53c91ef7534fff4515e29b2488467ea47d71369d1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/US83Z1903392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355b182f3956b66467db70cd6c63f30e8b84a7e012be0ad7263904b38cb5effa. 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/QZ5FN1968800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3275c84ea3d7be83e78f57386faaa7ff32fd16e3dc69c95e1ab3ad15f06316. 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/QZ5FN1968802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b065d2f895e2f93d9439a5aae3ea69afd34aea6237af1dc71a8fa6169d87f6. 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/DEY471819650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b065d2f895e2f93d9439a5aae3ea69afd34aea6237af1dc71a8fa6169d87f6. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEY471819650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c675824407dd03b7010489529a5cd7363086b239b9f87933ffd41ae8cfdeb8a. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/DEH742031292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e044aae0f9c766610df152069c655758c48102c636f457578b376a66dd69d3. 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/US83Z2038945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87d721e3296356273a075e69d84f36d963a59baafe59e9fa2156407b27b9fa7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US83Z2038946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeda116f6646f27bc31c0a7984bcfbdc8aa4f26f40c11d772b8865172a6bd813. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z2038947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75ee01e6ee6581e37103518ce231d638f12b567dfe00c3fec5997285463dbc0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US83Z2038948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd103947c4aab19280f8f6f7ab23947dc7424a5f52c82a6e5c4b96f56afdc06b2. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:43:46Z), 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/US83Z2125469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc5378ad769e4a6d249cadd3f6e7f0eddc073ced3e7818a3928324aef99599b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US83Z2204382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb643f02d74ef90362e10db178f6c83f588a886d3eff11838c02e868e0a7ae9ff. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/US83Z2239852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e107d779dcfa0c2111a29d23756663533638a7d1b3eb22d359554d831854bb7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US83Z2239853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed77c8b929f0193e2870b7ce38024fd2d42e0ffed32780ab7333f7c08fa2723f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2241515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08da5534045009ca52a4be9a01ada062895f15a08abe31e7c82127ddd721eb6f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/US83Z2324670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a106a6f6845878f7ad9fe40b0f6ea50442afbdfce73484cdf0cac7bd908946. 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/US83Z2325151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb48609b8a332de161c71a6c3adace4bc6b3d23e92af3b1afba1b17331fb4ee. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US83Z2324628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3187822ad04eaaafa6e810cc1958d1d4263787e1fb46fa58105f143b553dca. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/US83Z2327733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd696768c096b59c686c846d3f12932989a952b4f0b7496486fb762a0445abc8e. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/US83Z2477369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e80479a88cc7f444ae4421740bec69fdb36874564e952ec13ee091e146dadd. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/US83Z2480209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe991ec33e6db530ab97a89799a80ccf091e0d2b353acb15f442a46c0aa33c515. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US83Z2480210.
Alabora (Yannek Maunz & Felix Raphael Remix)
Alabora - Yannek Maunz & Felix Raphael Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7e05c0c08a530f7e0f9b86c040396e83e3969eb3797bb2f8fffec1588b6f80. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US83Z2487196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa670ba0469e5b70171eb53d38cab44ca3df055655cb26ca62b3ee4ca9d7f354. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/US83Z2487195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a92b3c55f9bf40db277b9dafd6d5ada883448fd98b54a8cddd31a38e57bb239. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US83Z2481251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef93d82cda90839cd7749e439f6892b11d9f682aeb0ec345a81216fb085205f1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US83Z2481252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5e83dc255ac866256dd5143c9b8a56d7480d4404de1b08eed4aee6e9367adb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/US83Z2410247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe38f491dc4d56b278b732c72a971c1c01e48fc12f64e5f54d073a50d69ea8a. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US83Z2417468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f78413047fc5c0e67f70c99b06486aca68998e4583af9c59beca4d9986f523e. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/US83Z2417469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91405ec9908033806a08afb3cf177b9182d013decd30c0d2b78667284f85339. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US83Z1928347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab36dedd81d71ba7b4f2f84b482bb90a1fe673ed78cdc75d660722b355c90ec. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US83Z2101780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f98b30b68f8175c42ff157901b14d973ced6b44411e174e26ccd189f442cce2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z2335517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d2ba8c9e82dc4caf73303e13f1b0a2b7607be3cc048441ca482738150883b3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z1933662.