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 0x1b59bcad66d4eab5865b62bb747657e7c82719ee060140ffdb0d96a1da3e2a0b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e7277d4-860e-4aed-a2a7-b04ed8d8645a.json and https://artists.proofprofile.net/proofs/artist/8e7277d4-860e-4aed-a2a7-b04ed8d8645a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Çanakkale Fedakârı Bigalı Mehmet Çavuş (Original Motion Picture Soundtrack)
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 0x191c150a0b333aec08fdee157172c4c87b9b6f4cb616c8a26c8f436d94d27a4d. 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/QM7281904531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f60f0080a62dd04e42586cc1415a2650eaa44d4af80a5255edd6566a230ffd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QM7281904532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94717cd541f5ca91a15f6d58aedb768a2c8b5a95981af1ac478984d57fbcfcbd. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QM7281904533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bfcd8cabd28e2e91dd0cafc3b139a44e0e4316940dee93d48b37cd9c7159e3. 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/TRBMB1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e433a817c11b9bb1a95a4d4ae7f5e098ba780af186e335adf3256ae041f2be0. 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/TRBMB1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d9a35bc046287cbb11f624b99dc1cad08c92c471ece04fb1bd3e62731c0722. 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/TRBMB1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232097ef73c7b90f41c3f6b6a94ce3afcff3436a51227e74432df17e5afa3fdf. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TRBMB1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4370d6ee8787e00eb08ceb03cc4d0185c0c6dd61eff0ecfe41e64f9157c792. 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/TRBMB1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e070f0ed20a91c37506e8ab069b4d52a00393353144d6728d224aaa88f771c7. 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/TRBMB1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798e708f58a9ecca5495e258738fb6977962865f737dae0ef9dae08d98c92419. 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/TRBMB1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf25bb090c2ab9c54ddc50a81e4f6a2fe2cf5204101657d68338943cb23669e5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TR0231000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc750b613f2712bcbb60dedc21689c548e77739d36acead69d3605cdcb1870658. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TR0231000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba868df88bab3077cb7bddfd2fab683be67e97c78de1ae5dca79a8db30502e52. 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/TR0231000071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262d1b658ddb72988001dffe137474bdac86a569be0e9c01b044ff0786d6b0ba. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR0231000074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fed9b2bc22d9265a0579f56ff014327217536f84b18c91c5b5a20480c753c1. 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/TR0231000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e68174b0d1f5b4d4070a82afd193d7fcc3ab24e2d048f112b114dd582fc2afe. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TR0231000079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1441a362671189f536ea9a852b3e7645af496f3fcce70de79cf6ac9d34a85380. 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/TR0231000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdec5bd7ee0e4305615fd2d3bf02493d08b2b526289a2fcba329bbe4efcb396. 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/TR8472100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05055d8dc77d214f2b30c1dca6937362eeb44f2655ac7606807357bd69ee6d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TR1231900402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89521103712dffa367f45a396f416f655a5074b7178bf68cedb37fd00882e87d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR1231900403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ec5de12716ad3a9f230c9a69f7056cfd1b805e8d0162c449405cb7745a7931. 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/TR1231900404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd4479a96e03b76a82c434d25dcd5e36f4140df9e22b6fa74d1cda086a4861. 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/TR1231900405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf6ef3fa598b147f966bf85a7d92afd395cbf65ce4020e2d03da4e9352ffe9d. 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/TR1231400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146350dd079fccedaa62bb937f13f9ba65ce93e8dd0f527850f6355f95bb058d. 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/QMFME2213087.