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 0x145443ce3c5ac042e816ed033cd32298f026308a430259cf6bb7041163f37ba7. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e710ca2d-9ec5-412c-a7c1-266204c82f05.json and https://artists.proofprofile.net/proofs/artist/e710ca2d-9ec5-412c-a7c1-266204c82f05.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 0xb411aa09974f57da044430bd39c714b129fca0c2907852c2b8acd20a9a7a47e9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZDA81931237.
Charlie Brown’s Gotta Be Damn Near Public Domain by Now
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b39b4ae112ee2a173897a50af0b87b48bdf25db5afebfc32f7c7e1993abeaf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USDY41974260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b74f6bf7327a1a70140eaf920809cc85d8e709abd0a7344ece3daa90ea01d. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/USDY41974261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c024fa269fbd07aee3f04ef07f290b200d7f72fa4e083dc696a748b1e3b6b3b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USDY41974262.
Hey Did You Know That the Drummer from Saetia Was in Interpol?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba79e4320b4722954a7d31768101ea54626c5b026d661709344a9254bb77a953. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USDY41974263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8b1c45097c245651222bb19a67400e9e73323254caa235d488ba79dda57943. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:03:01Z), 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/USDY41974264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0b101bcb0e4f562d5ae6118de8c325919a489e0546d578cfc0d0461e22ed99. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:06:19Z), 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/USDY41974266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e482527818d44f4b3dc1ad68da5facba18f179c314d9172b91f3bed1da316bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USDY41974268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82d9127576fe2d4fe866335e9b705a84dd55a78d5237b011c3b00fd230dbe63. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMBZ92089167.
I Slept with Wes Eisold and All I Got Was an out of Court Settlement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe8b42dca8b9f37ad793c041a807ec18e6bdd5ffc7d22a2c4a822e73cf0c9ea. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:45:23Z), 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/QMBZ92089168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79fab7c883d29e7b460b77a4d6ae2d0093fc7fb9f77dd57767539d7168fb170. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMBZ92089169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adf122c179f85927169b3a4f89313b6f212d3781a0c3d106304ff266bc716bf. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:10:38Z), 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/QMBZ92089170.
Birthday Candles in the Effigy - E.M. Hudson Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d90f65bb02ed8802b14c0aec753d6b7df45d476f69fe90d90a16dc77b1d666f. 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/QMDA72192616.
Push the Fucking Rock, Sisy - 196degrees Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86806e979364e2a7efb2dc146cb98b31c8a504fa1de1c8e339ea1b9c72fca2c. 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/QMDA72192618.
Abscess Makes the Heart Grow - O__n Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118400916df9bf0e3c21c85e3de283e227f4b76b61809690e9219668158dea44. 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/QMDA72192619.
Save Your Breath, You're Gonna Need It to Blow My Head Off - Carson Pace Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2197ca2c2bde9455260fec737ec9c316fc0767c88471de057c70d5f56d4ac9. 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/QMDA72192621.
You're so United Ninety-Three, We're so Flight One Eighty - Heccra Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00c79b3c723ef9904f34ef993939588322f1b768b180dcac22b411cafe9d3b7. 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/QMDA72192623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf890e7da7d476c282ebdede4c4f527e034ee30bed96bc5a77ecab97c3432d305. 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/QMDA72192624.
Thank You for the Venmo - Endproject Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f90a2572aae9e0a3e6137e37fca949f00a3510ad5b9f7d89f100b018d693f7b. 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/QMDA72192626.
I Slept with Wes Eisold and All I Got Was an out of Court Settlement - Field Medic Redux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7e5740131f25274aac88e5cb56d2c1f3db1830166d790f616b71d547f3a8a9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QMDA72192617.
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 0x6e40b3e6ebf695aba9c8bd8a23f852499670906cac954c556eb07cc84246aaef. 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/QZNWP2551576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932c6090ec00e19e205e8a47ac546303e7b7d23ca0954d35f2b528d98686ad7f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWP2551577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeacb93207a81294c4b575ff17e611c58d0a34ba6f8a036831aa37e38b6247a8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZNWP2551574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e40b3e6ebf695aba9c8bd8a23f852499670906cac954c556eb07cc84246aaef. 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/QZNWP2551576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeacb93207a81294c4b575ff17e611c58d0a34ba6f8a036831aa37e38b6247a8. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:35:17Z), 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/QZNWP2551574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1351b548a1e1f545796368f808ac1dc35e9cb9811e7dc19b26f7001da6e92dc4. 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/QZNWP2304207.
Twenty Dollar Enucleation (Love Is Blind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d02810d3ee889fd87cca8c2a417fdf3370c217def855d135e6c55173bd1ee5. 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/QM4TX2324323.