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 0x402d1a90ac9660d2f7665c42c99a560f2c300a2fa20f379cf16359df4b57b1bf. 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/e5aef1b7-f7b4-4bd5-8eb2-e00c3cdca015.json and https://artists.proofprofile.net/proofs/artist/e5aef1b7-f7b4-4bd5-8eb2-e00c3cdca015.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 0xb2ef4a08498565c7df955b7b59c5db60592f923a75a57366a0b43ce46c6ed32a. 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/QM6MZ1910684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd770818a793e1d2dcf460a200a32e8893577869ad7f11df14df48b12f9873082. 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/QM4TW1843160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b0233b4c591f72c55bbf605134063aa3a96143ebcc43dceeb907e2bdc43440. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QM4TX1898480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60fbee32649c17064c9fd9ebd2d9737c268ae3a4a68b3e4cddc181632ebaa19. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QM6N21871091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21723d81859632a873ea335dbbb4b8dd7933df9f84687789cef621d90fd0557e. 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/QM6N22005724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ef4a08498565c7df955b7b59c5db60592f923a75a57366a0b43ce46c6ed32a. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QM6MZ1910684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe665696cec074c83b957a45caec84962ebee8e137e51f4dd798457b7f028da93. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QM6MZ2089785.
Round n Round (feat. Pepper & Kaleo Wassman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457763ff5cd46c68fdf6ca132892fd678508a68bc87d2618002b0c44d1e2b1ee. 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/QM6N22005737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cbb3ec4485680f481305e62646b01d1495643852d26627cc7990d78be3f4d4. 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/QM6N22005735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21723d81859632a873ea335dbbb4b8dd7933df9f84687789cef621d90fd0557e. 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/QM6N22005724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c17c10de8c9dbe906459ace6fc921ff882d1ac726636d969b580eaa13d40fff. 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/QM6N22005731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21723d81859632a873ea335dbbb4b8dd7933df9f84687789cef621d90fd0557e. 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/QM6N22005724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385436b57daf6088ffb635d236d596b22a0e74174c284e4ee0e3df64f05332c7. 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/QM6N22005732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ef4a08498565c7df955b7b59c5db60592f923a75a57366a0b43ce46c6ed32a. 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/QM6MZ1910684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c7c411c0ddcf73bc282375e768a3637de46522097449bcda07833fe514887e. 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/QM6N22005733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f0694024a8c54390859328ee23934ae1107ebea5d0d4214d4fa29668fba693. 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/QM6N22005734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cbb3ec4485680f481305e62646b01d1495643852d26627cc7990d78be3f4d4. 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/QM6N22005735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d1279000986d01745bf6804dc68816a7c56ebdebbe84140ff79630b493cf5a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM6N22005736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd37ebb3fa813f22caea57a7d0a737fafc3fe31458836ffd9e854bb0e4edde28. 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/QM6N22005738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc340f7fe968ee0cf1e71c470e746ef1ee2e65b17ea51d0b6ea326330b2e81f7b. 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/QM6N22005739.
Someone Loves You Honey (feat. Asadenaki, Sidney Mills, Mannix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd15dfafe906d44dc31ddbc770d67b5bd569bb0da99117c5cc4f4c88731bbef6. 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/USA2P2111984.
Say It Ain't So (Live at Sugarshack Sessions)
Say It Ain't So - Live at Sugarshack Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f378597936a6450aa245ec9ce0749fe41909eea811b6bd0360939bc00b51b61. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZ5FN2263205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38edd37ddf6f51915eeba2bab967730e1688a597df63a99735c372ceed58e86f. 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/QM4TX2358096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27a9bbe96d236133d2946a6bfbf7094951ea9346ea6ddb3a64a0e82ae2ed76a. 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/QZTRX2407734.
Pop Compilation Vol. 1 (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f378597936a6450aa245ec9ce0749fe41909eea811b6bd0360939bc00b51b61. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZ5FN2263205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1834d01ca3115c01f3389050e26b4c60f5c52d5d9fcba6cd9d5f05fb64319b0e. 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/USLZJ2123002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942049ef0d33f78da35891d92201d810141ff646a632e1a849af809920a3b43. 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/USDY41918143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942049ef0d33f78da35891d92201d810141ff646a632e1a849af809920a3b43. 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/USDY41918143.
Rise and Fall - Live at Sugarshack Sessions
Sugarshack Cover Compilation Vol. 2 (Live at Sugarshack Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4fa304e305b03e3f705dbcbce41d68029999deb68a5ace6d5ca42224089a7b. 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/QZWDE2257867.
The House That Bradley Built (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe665696cec074c83b957a45caec84962ebee8e137e51f4dd798457b7f028da93. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QM6MZ2089785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72b017fc757a3fbd11165aca4da6a56fdee627fb72006fe66eb3754e2963d11. 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/QZTRX2226289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee58d29bc5fc581e110a203f46139ccbef35239eb53bca38050bcd3c9658c809. 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/QZ5FN2238596.