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 0xad229ddc79c8629c5a8a2c89b0cff64cea4d643b265a4331af815bb00f5e93a1. 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/8beb9790-737b-4412-9307-cc0adb4e00ca.json and https://artists.proofprofile.net/proofs/artist/8beb9790-737b-4412-9307-cc0adb4e00ca.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 0x534faba53f93c542a7a715930906753cdf5fe753c137388660d6833ad7ed10f3. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/QZDA41884270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bdb038491153ccd54a42cb434bbfd6c902456afde150cc26bc663ee4159dd5. 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/QZDA41884620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c3c02ab5ea32af70b84c46b2e047850aa22d6be02d65f134b53d4f05164d55. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZDA41884623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5de24e37de6a66dbca7a52d0a0c8be3069560770eb57c4d24921b3ebccbbcf. 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/QZDA41884624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3607ef12ec41565e0e8d171aa3614eed3b67432987fb3bf5f8fe5db3badc96. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/QZDA82021947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959ea939216cca8aee83358b3e8d7aff589fdaa9a929fe06e9ed71afca3d132c. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZDA82021948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2be4b4b5826698479bdd2210d9afd82a268bc294d31473d909b780ca4d2d66. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZDA82021950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb984d778128008c7d48e6ad7213d0a4c5b6a90db357a126296b1e49e717e1374. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDA82021951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6934a483233d72c15332062e9a3e693ddb575250867574bed452c1d6e6970b. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZDA82021952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf521429597687e365c004d6a6d6a115b0728d260d33987ad137a7772a2c894b0. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZDA82021953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f54cf2b7d61a1fbba53aee3977384f4750c3045bc5cb48b371d78f71196280. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZTAS2155580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7adfd9cb6f272a67ebf10ab5081ba655eec1ee4b18b322536863ccea77f48a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTAS2155581.
An Upwards Curve In The Horizon (Merkäta Remix)
An Upwards Curve In The Horizon - Merkäta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77cd296abdcb466f5d0e42bab17287f80c7744c6b02c7fe662889881f4f1369. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZWFP2365424.
Lifts The Curse Of The Grey Goo Assimilators
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f303cdba4ec2bd2e4e6ea8da6181b4ae67217c84b6aa7f1e9ef265674a0a82. 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/QZMEP2469760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45baa27bd1004f9eb650dcd1944df333b76c754fc5f81fa817d22111221a114. 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/QZMEP2469762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfdc32ca767e2f5654f8f678dcdb254f0744d6f9272a8b00e133d5a9df253f6. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZMEP2469764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea88fbb6092f79bf0fb10b5b3ddc6dae210c4817e7fb5e716493e86b771eb1a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZMEP2469766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ead62f5bc9598c8c2b164ce8e574267b12bb88a04d6cd7c79bdcee5611e210. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZMEP2469767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b2a3f0a1ecb727d6e07e92ef1b5e40423428acd3d079586c2c7490729f70a3. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/QZMEP2469771.
Esmeralda - Globular's Perfectly Precious Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc9e7c0396d03271b95f54be4f47ba19de9b1ca65c1edb350e18b9466742172. 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/CH6541682145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da21861e71b2367840b3abca84621c740e25303ca94eb248fb2cbbc234883c3. 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/USA2P1488366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977ddcc1c8c890375a4fc3bd5512d98436372dc6dab5b0486fc2b423acdf2bf6. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USA2P1549994.
To Be the Air (Globular's Viscous Ether Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aee879cd330712fb364ab38334946cf20bd1e6e816164c3f7bcbbd27075b2e6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZADU2011711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fce2ada8095e890b3f8a85dbcbb365e7c7ec53c7634459f2f3f2cbcd3c3a9d. 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/USQY51621645.