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 0x1ccb98c42e434403b3a25c0d4e2ddc0969f92c1a006b528fd43ebd888bf56b36. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f62e293c-ae64-41b5-9c29-25258695a2bc.json and https://artists.proofprofile.net/proofs/artist/f62e293c-ae64-41b5-9c29-25258695a2bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Green, Red, White & Blue (Patriotic Christmas single)
Country Girls Never Get Old (feat. Philomena Begley)
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 0x98b1c7565afa5ca65a131a1a134fb99482e9cd85918d7b368d071e07d01d19c2. 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/QZ48P1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5998499f6a158f334bd798ffce762876a7dcbfcd3f24a3f166de34e01e69c4. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZ48P1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cd8fc9be6e10bf74c49ec28393a1fd8cc8b54400be45e5f995f83fcf63f3f1. 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/QZ48P1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d4af646bb0ce8d671edc0852c54073f2e6ebc7669157c842387d022e475a30. 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/QZ48P1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35366429eb9022d9d53983f819684715fe81247ff38c2ffca6c5a7a6c5e74f68. 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/QZ48P1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e6f3a56923cc5002a73614563cf9be925fcdbb7a154942066500f912c05c7c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZ48P1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089da2f659c3196f8b8f907d54d7064e16d860026a757d02a6f37f5722faf6f5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ48P1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f989427d22a9841a4f19f111a018ecfc00630d3c4695f9ef132444ec62c6d91. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZ48P1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa359b554ce98a865e78131cfd76a5ab7b8f730a21deef32c382d77ee791cfc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ48P1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94b67623b48ba068cdfe90c4b079d8dc2873ea6db94829c4c87f309c476f3a8. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZ48P1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e5fb05ad9c07b1ab09a3a5ca518e45ee6e968a8048e06aff78245fed36f9ff. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZ48P1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fe3da7eeee3f378dc8b5d41f397cedc6ca62e7a2150d3e4dfde4912a50479b. 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/QZ48P1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26532b46bc9affda65bad2b76de0aec701addb18a6a733333c1c40acbcea4de7. 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/QZK6P2122175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4e1a50933ea018d93c44754afd0806f8f847a3c53fe14cb3426dcfc889242b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6K2412083.