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 0x5daf36e3d8d112fabf974777c7510e878862d8300eff445ffbc1038430f4c1bc. 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/de512739-6d59-4f53-a832-d06dc7e54107.json and https://artists.proofprofile.net/proofs/artist/de512739-6d59-4f53-a832-d06dc7e54107.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 0x4c275b41ae4499d549829820a9bab733bfa4cd24dacfb9bc15b016dc5771b7e9. 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/GBY6B1200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd284490628df3ce5fc4c41c15b1d026a2b00631554fab19d82f30bae60b3adb0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBY6B1200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669a1d7f961ba6b63e5c1c0b6589a941f66bd6c2fda16a97c7a5841c397277b4. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/FR9T31500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4478ea9963561a792c88cb558f57b10473c85988c77b34df9cc8d542b44b002d. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:19Z), 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/FR9T31500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae3a9eeb7e3e38c036eaad29366b9dce826b6883eb09f9c339e6ac9c6c36fe7c. 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/FR9T31500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e269ec31fd03cab8de54c7e1553d7f57396ce76b1387098a8a1bc6f0fecdea. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DESY21400435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bca8408acfb3ff07437556f215fb156af65f3b38a24c1c70c4d172792939cd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BEN092400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bca8408acfb3ff07437556f215fb156af65f3b38a24c1c70c4d172792939cd. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/BEN092400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8054d33f24bbdd67072bc94296ee2ad45e6ed49cb4fc63cf4381623fff8387. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BEN092400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a823048f102d3670e674977d8c7f27b4afbbe194f4c46003b51d42b8ee40b89. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:52:45Z), 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/BEN092400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bca8408acfb3ff07437556f215fb156af65f3b38a24c1c70c4d172792939cd. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/BEN092400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6063ca66484e5fa0ba036b698f7b24811e98e2c36ee01f56a7ecbc4a3392e8a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BEN092400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6f0a1512287c60efbd41bb94ab6cf997891c586e0ac8b23fe4667868ea3a57. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:24:49Z), 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/BEN092400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3fa93081bb017a8dbdb27ce36b9de1f35b6245f7a89f5bd8f9ad63d02f23c7. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:27:14Z), 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/BEN092400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa7499d743d9977a35d92548a286253ae126f01229d99f98ece35f4a05da1f8. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BEN092400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbca45f080817a060df95fef613448b21b58948126ede51da243f3fbd07f11d. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BEN092400014.
Teeko & B. Bravo Present: Tempo Dreams, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03459a2e49453433d2b5ac99462007daa6c4a6d99cf7dd9cbdc7018dc2c67d71. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USGC61300377.
More Bounce Presents: Feeding U New Knocks Vol.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553ad9bde050f965852ad41e601c3334b04706a076ae3b0571ee1216322eddfb. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBSMU5793216.
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