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 0x0a5637de78a269e2811d66fa85b94f2f4aa5e8af9d2f60c3bd5d7fd0c4eea78c. 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/3557f1ec-b76e-4c54-a043-398a77f4944d.json and https://artists.proofprofile.net/proofs/artist/3557f1ec-b76e-4c54-a043-398a77f4944d.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 0xbdf781556ed408d0b4e0185c11efa44be5fbd95f75b40468e26871d53cf5131f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCACZ1749320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e0fd27deecbb3e29ab41b6a84b9e6116ea1079a4f0702e087a2032b653b4d6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCADK1706458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7facb488c9804a8c7ad16137eb498619e6b96ea099edad034dc252129405bee. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/UK42F1700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dba0b1b64e0a40ad1ba1cf952bd07f526cac91834869093a995143d8ca069dc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UK42F1800181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0c662da2afc5f3cdb02d2bc316dfe747653644c55d85633dbef799e3dfad25. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/UK42F1800191.
How Sweet It Is (To Be Loved By You) [Acoustic]
How Sweet It Is (To Be Loved By You) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa201c12361ba54ad81ebe4d512f55979fecbb1a457ede63ad2d201f0bc1ae6da. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/UK42F1800201.
It's Beginning to Look a Lot Like Christmas (Acoustic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b46406468c79ecc11123708fe2ce2fa94ae5b7e08a8751c71862f886233bee6. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UK42F1900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff31fac9f210c0e326484d71924a36308df4fe6be2b35dfef48959193c253c2f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/UK42F1900100.
(You Make Me Feel Like) A Natural Woman [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578644f506fbfb82a0fd11e8d3e753775332cf37c521d482cd77c63112b09b9f. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/UK42F2000260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63be2ee4822421c22bb8424c52da07d263aa3890e4b728af18004eff7ec8b9b. 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/UK42F2000660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee10b788a7b49d856854f5af3a1f5fc650b7bdf669a59a3b8fc91fe8b510ea29. 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/UK42F2100121.
Who's Lovin' You (Live From LA Sound Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8da9d75465cd620d3b0484dc9381ccbad2be9b1a9d0e9de17a76d9afd2bf1a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/UK42F2100255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6660c7320dd3f987e0540dd351940687c45561a6bd7243cd06d72a4af7b51fd. 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/UK42F2100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a50949293f263626bcf3eabd5e20867ab5866e60d16eab0328b106c3b7c2c2. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/UK42F2200010.
Love Grows (Where My Rosemary Goes) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b82cef2590f7dbbb7a3ed86d9c55af497daa5cc5fb685508f01390f7d7bd4b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/UK42F2200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8742e7dac6c28d87354b598a809038b57e6d86ed6c3a4e14ed350a327015491. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), 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/UK42F2200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28a0af530427469afc8834c1a8fc96d515e657644eab284d996109b4a486714. 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/UK42F2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df7fdad9a5fc9c6ce66db460bd0d5d42b4045ddc12b8d0df5b7f939eb790332. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/UK42F2300248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542cc174f1e9ba1f9c2b54e3a572511ca8e29df817019df6f91435254d00aed0. 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/UK42F2300261.
Signed, Sealed, Delivered (I'm Yours) [Acoustic]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6d35d1b175a0384036647b34042da50898065650e9cb3811e32c799e025d2e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/UK42F2400119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e918bc5283a6cc4615b52dc2175c333850e5dfc6d233c79303b0e17386ef22a. 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/UK42F2400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc34b53ae6afc9e380615b6328291399b4aef12cd136b0d0502856c886ee7957. 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/UK42F2400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe9ba5d52abba585c18806b39cd2137ab2ccb713f13a3a70a571258234ca3b. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/UK42F2400175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd433ff0d6827edf8267fc998311718ef6be947ab0427016cb1b579db451977e9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UK42F2400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc58085aaceb211d055d3480ea4cc3d53fa18a07501cb0ab184dcaac863a125. 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/UK42F2500264.