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 0xc8a7cba3c387d11e2127c6cb318eca16dd262dfc31e07e04995185464c4e7464. 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/5708acd6-2eb3-41cb-a6b1-f9cbcd81d005.json and https://artists.proofprofile.net/proofs/artist/5708acd6-2eb3-41cb-a6b1-f9cbcd81d005.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 0xa96458d64551cf57a1ae80a270bf4922b78a3feab5874a6a4d502c825d0feaa5. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:43:36Z), 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/GB8KE2052562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b5db61f007d3473ecfec2585c50e366639f7b9b1d50202f1928d47ae125f1c. 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/USYBL2001649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38065eb75c25b4a8c8ee0ffa5c0d1447a4774adff2d8b9bf3a1d54fa679894f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USYBL2001650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c3a3a5758f7a3ebac28f3c74a6d17f1476aa8b3eb58954ba8b67422600e0b9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USYBL2001651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025d8ffd81e6cd53d626eb71f1f725d1ae2fd24358feaade83515158284d6e62. 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/USYBL2001652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e83e4d96c1d69017694c72c1e3469091f9f092fea11b2508a10de4028a02fe. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMEM2013851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf11267c7a833961c45883c7edb3f97dac0e867ae204816b07e385aea458cfa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMEM2013852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91892668b5b9a5e209913ccd308aea4054d54018e58604d1e77c52992dc2cb3. 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/UKQNV2000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a01dd79f146f98ac3bd6757a0e4c4233373b07b9f4d538f6cfd6c0c71693d8f. 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/CA6D22100221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265cff11becab4c9085751bc8f118b59bdc9ea3edccbef96fdd392e28f58e13c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CA6D22100222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5363ffc595b593826e44b8698519d466e51e3c2b9d9e27e7448cf721ee3f937. 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/CA6D22100223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cabc38419b9aff4186b7423d3b2cfb2236bc4ff7f965f0ed80eaf36899eeb5. 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/USYBL2101664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19df47f35f6d85aabf0b05f648b5a4d2920bdff1db0d75ddad4165f09e4e76ea. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFYZ2216416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab305b23c402f48b9fc9f952bc285277d375dad52784e4853aa24875aba3066. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UKQNV2100325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c315a19dace0a84026c6df108260a766aa7f9a44118ce244326723b8acc480. 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/UKQNV2100341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a29f38ab4a4a772086b3788e7de7a82bd4f89617cc8845524220fa578d8911. 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/UKQNV2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ab54b62b08ad42c13d1bc662e1ece18f9896fec37930020a0ccdd9affac94e. 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/UKQNV2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5e7bd9a7b425cfe6610969027812b8f8a9aca38ccd51a14b28cf16c4ab56e1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/UKQNV2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d344181390bf796caf9709b44a072860d8d8bdc657aaf6bf5175d4e6743fc7a. 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/QM24S2307831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80d39d2e071fa3344ed0f4b1a12777daa7c94250721230df9d001fa2e5df095. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QM6P42452137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12cfe339381d81cc1031799134dbdfa1a6a0fc19933f4440fcef957fd08b0d9a. 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/QT2VB2427270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77323737aa4249f9a2d31cb743dc6693799f533e340f3c201a5b2e875336cf70. 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/QT2VB2430466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e2b11e16c26610eaaed5ea540fee8a0643e570d723bfea99e8f9ba60701afa. 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/USA2P2405283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde35ef8427f7c8060c1a21500278547f0e108e8f8df3f8e0969fd9e5ca6198. 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/CA6D22000440.
Every Pigeon Is A Dove - Drinks On Me Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1535adeb93be9c5d98b39c03a197a29c80b212330d219ceb1453456cc679cafc. 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/USYBL2000498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fde35ef8427f7c8060c1a21500278547f0e108e8f8df3f8e0969fd9e5ca6198. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CA6D22000440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1c85b6dc6e4fb5e5debe29c804bdf02e0b8d0a740f13e884f2b27630a2d208. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/CA6D22100220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fbf3ba32f60b29a4b13eaa735953b9b40ed4a589ee4ca1f7dcea93dc38eab7. 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/FR59R2016799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b97e46f5dfa2f2fdf951e2e14689a2de4ae85f4b04c934422d113352d822865. 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/USYBL1902120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868cad3d7bb89e9d454ea00f10ff1f24b79ad1dbbadb355106654d547dee36cb. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USYBL2001714.
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 0x1100641e015e3306206a3044e5e6c494114681cbbca8c606a9c2e64f791c49aa. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USYBL2001913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f711d46b1755d42b7aaddae5995a19b505efd3a4e91bd21ab9accffe2e0a1b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/NL8RL2318360.