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 0x70c96b4f387e2aa7d1cb5e6940a4f99cb82ecc6b9db860f7c28f9220d4b551c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ada8fdb0-948f-44f4-82ad-99cd81f8d3f5.json and https://artists.proofprofile.net/proofs/artist/ada8fdb0-948f-44f4-82ad-99cd81f8d3f5.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 0x1ced24f90757087a80fb950532fe5d7d8e7d7bbda1bf838c8e0f534a85a75b53. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/EEBO32000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cedc5bd5e628620c2b9bc745406e222e6ba68e3647e15743a9d6849c0bceea. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/EEBO32000045.
The Search for Life Within (Instrumentals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d72c9754a9e3980b5384a959423b55cec3b5bbfe7c6fe7709194b27dc3d8ad. 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/EEBO32400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0145bff04379003c331814e47e2e2c3d944565ff438189f9d5dd4e8a2408a411. 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/EEBO32400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda2fbc23bcd378872a514b62635228ab285d96f540fda35fba95f90e81845d0. 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/EEBO32400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb188d8a14728193662e2c46929f4c7774b48b19de3dacd74917ed45da146fd93. 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/EEBO32400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a7f3f20a4b7dae9edcd91dfdf1a2b67731120bb4e981987c94180f61d39791. 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/EEBO32400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfabe2987bf81042817caa7979efc48c1d01625b53601133b980b59b432a4fe. 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/EEOY32300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9bbe4dd3809001ca791f35212fa5087bfe999bc24763ea9d3f8e87e7a55396. 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/EEOY32300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e9d702c27a0096ec31ea8c8672f579b476b6c61dac368dc12db4aed9d66bef. 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/EEOY32300009.
SIRE JA MURE (feat. Luurel Varas, Maris Pihlap & Mattias Tirmaste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195ccd27eeee9407e645ad21afe181bb8287f4ccb0a7c1647d5b248005bcd239. 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/EEOY32300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf59417bcbee24726fc143f29b8fc5170e9a6176bd27d21f6d0648f905f6004. 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/EEOY32300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d0918aa77cd6ef81372e73fab77b4e937227b99309fc1cdbb996a52323b068. 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/EEOY32300008.
MEIE SÜÜ (feat. villemdrillem, Maris Pihlap & Mattias Tirmaste)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1832b10ed94f15b8dfb01f36de87546f483497d5996d4caf25738ae42db61b54. 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/EEOY32200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ca6f6eb0b0af33e3a99093a823ad0dc56eb26823acbbffd2a0149980958386. 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/EEOY32300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f696a65e4cbf0be870166e19ac19065592e9d73a7a9ed16f5a8cfb3e1c60041. 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/EEOY32500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877bd85a1daf2f4c906ca79a1f6f19ace311412b834204ba5c141af52c8eb663. 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/EEOY32200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6818695bcc15fdc60ebde0cb103aa43a86a6423d089891862b6a924ac4b32d39. 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/EEOY32100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693d47012e9ffa8acb4d280d261d3fbf57bb857cd891f783205a43a583575798. 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/EEOY32100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca24964799cc093cd2196f2c4e177cbe71db219ef6def72cbd29aadf01d616. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/EEOY32100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e5c4709b5246efed2588a6f1f4759eaac73dcb85f85b1c5ab2cebd19f2badf. 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/EEOY32100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f5a2c4e597d715696d4bf80f0a9ebf5559e515ee7c2df77c821c1785ffcb00. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/EEOY32100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ec31d59c21692f392268a1367074f0116b1b2c351c05ae3c7635274e5a2e15. 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/EEOY32100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702d47bbb99206644ad9f2c615313b59d53c925c90bd3879c9b6c67ccd133646. 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/EEOY32100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c9fcfb652e33371eedb00cea660d6e94777dace12f05d3ca257ee7b6318426. 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/EEOY32100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0235c7277f6f6ae047861465978485d0430579ec720a6d4737fedf4c56ff0b0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZDA72310798.
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 0x531d713292d58b7c09d9dd1aaabd6da213d1968aedd8693a77fc524a7da0a8ee. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/EEOY32100016.