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 0x9eb6ebadf11facb457653ebe349e3463ce611a009f2aaa0bbff9fa7ade7a7f71. 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/b2060b4a-0ec1-471d-b014-45a83e6ec6dd.json and https://artists.proofprofile.net/proofs/artist/b2060b4a-0ec1-471d-b014-45a83e6ec6dd.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 0xc80319818f6fd11519ffeea77ecfab929f87f47f74c61812701b3c4c87460151. 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/GBBBA6275010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962ce0ee8d3cc214bee5d188b1cf3807a46d163db0affa5d978f0e1950c4ebfc. 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/GBBBA6275020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7727d49abafcb08fa04d0a2824b2075e9437fc3047dda1591c163691e530d2a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GBBBA6275030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05d663612c35e96750d003bb69c2c3f475a3ba01627c0f9bbff1b1070cfeba0. 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/GBBBA6275050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad91fbbba7d73792c2e04513784a16a5a7f89700aae56e13a0c35c839f5ece2. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBBBA6275100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5aae7b04ff98e60896682f11902d35492d5ca5188ad9cc9bd740fbf9b0a168a. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBBBA6275110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89680f8c610d0861392ca4a369e3144de6ab9d598127406d3f70e2f0da5b049. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GBBBA6275120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c1e1911aa310a2a987fc38add1a9a28d60d7f487ddb8ca5dc9f456d0a93074. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBF076222100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1078ca6c837a42ee0aedfcdb74230156a6286dd5d587accd24ba5eb3156a9c3. 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/USESR0275133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c0176edd85f6631d2e6d956fecccda3012fec1a097d3ca5ff75ed2c86f2664. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBUM72002223.
Monster Mash (Monster Party Spoooky Versions)
Monster Mash - Slooow ‘n Spoooky Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b781738aaa35e66d74dd4ce5d018fe4c0c4db9e3d9059242b29c169bb238f4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBUM72206150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3e7c4c930ccf373e4c7c60e42cde45dd7de95e060a73c29a807ff464f8eda5. 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/GBUM72206152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444eede555477b042d83925243a60f5761c5a5ffb6a4ffcb8fca6e996435374. 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/GBBBA7360050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444eede555477b042d83925243a60f5761c5a5ffb6a4ffcb8fca6e996435374. 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/GBBBA7360050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444eede555477b042d83925243a60f5761c5a5ffb6a4ffcb8fca6e996435374. 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/GBBBA7360050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5444eede555477b042d83925243a60f5761c5a5ffb6a4ffcb8fca6e996435374. 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/GBBBA7360050.