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 0xe3d313b6175a39dbe2f4fced75ce785761ba291554b436aa1c9891f7a1811790. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c81da58d-2d43-4c9a-afd5-d374618315c3.json and https://artists.proofprofile.net/proofs/artist/c81da58d-2d43-4c9a-afd5-d374618315c3.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 0x6dc18d5b098315f57096d6675807fc8f8798eb9b8b5db5314586105053fa202a. 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/GBNYT8000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c320dcbf983465570b1732c235bccc8f7055d4f9566e68859a9ca9a73b1a01. 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/GBNYT8000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c357e22a90673b0fdee44f387988bd1e23b7e2b7533ca1984ea2be9733bf769. 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/GBNYT8100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65474638e0c762698b7e110c3529ebe3c38b67dce4f133a8adefeb80a8e3c42e. 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/GBNYT8300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffe6166e0bc56a821ae3b4a1f5715e9fa5a49f273deb1fd6d3740af3f13890a. 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/GBNYT8000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30eaafe5134b90a8362138a8e4497275cac06d79fb2cd1bf83d2cb7ede68419. 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/GBNYT8100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57a94398e0a97a1b22eec1716f84dedc75ce1fc32205d2aa98f746d57fe0691. 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/GBNYT8100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcec953a86c3a45520c91cf4577c9d5a3dc8217349f7fbdedbdb3a48ea75d64. 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/QMJU81200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1a370bff4103b5b45437b72189cedd8b377f5dae4c31ca4cca15db06a2c3b5. 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/CH4101606003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb82050db94e0669ae913056a8c6305ae15b2c7897f93e946d90ee47f8fd429. 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/QMEU31514958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace64f37a871fdc0cfad3f00068256e9658efcb816b9236f01be7bbcf40dc3f. 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/US9C81600063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77570e90c42a352bef04291bd546853c98718836df038b9ac6e78a38b80560d6. 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/USDY41620373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf844c93025d3734a279e2619f9a73e59ca482a5795279ea5493c3b8aef64b6dd. 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/GBNYT1600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cc8b033800ec6d37dcda5702e5308fb1cfae7c7ed80bea9a34015b009dd3e7. 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/USHM81635495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4514cb2b17658dd4ed2175f8f4aeb7ad956e1a8513a59761654099a3ca5a94. 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/QZ5EX1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f5c4a1b7df39940c0e33ae9c84a177bfa139fea0e5a939803fc8d30d2650a7. 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/GBLFP1641489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21754fa8d99aee0c79216eb7d8a0b33565c07de7e21f34324bf32dc3ac5586e3. 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/GBNYT8800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30eaafe5134b90a8362138a8e4497275cac06d79fb2cd1bf83d2cb7ede68419. 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/GBNYT8100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43277a18f3ed3d52e49dd79aa185c03897f476f7c0e309a0f9945b040ca2c53. 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/GB3TQ1500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217c151e0d364e075bb791fc5cdd24e71ef4fd63efb258f6aa4e3a826d468e71. 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/UK8CQ1600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f98d641e03249247f1abb5abd5c6639d3f039d46dd8441a88ad29a09966771. 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/TCACL1659987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8c19069589e0b620a0d07d81de910debe9e5aed8eb117d73a3a49b2d1a94ac. 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/QMEU31613721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b74a716523f4ea75138c9ebae36e5c8252e70cf8cb9defa4ab8bd32f8df667. 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/GBNYT1600017.
Love You Just as Long as I Can - Tom Moulton Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9fea4e5921099f3b705479665ccea3e5eb96ea3cea014fb0d4c04c55565c89. 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/QMFMG1591933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c357e22a90673b0fdee44f387988bd1e23b7e2b7533ca1984ea2be9733bf769. 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/GBNYT8100001.
Original Broadway Cast Recording Bubbling Brown Sugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0afeee51349972f1e3aa2fbb79aa2d3e2d89a33104f3074bc6800db66cb2a38. 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/USAR49913008.