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 0x1ee02f289df4ec860fa029d1f4746593921349a10d601db342e20c00b78ab734. 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/83780979-9b4f-440e-8d6e-00b5e990cfb0.json and https://artists.proofprofile.net/proofs/artist/83780979-9b4f-440e-8d6e-00b5e990cfb0.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 0x55622daaa6b39c15973a3fdfed431dbf63dedb2ed25aa0b1bb90915dd3784f53. 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/TCACW1737425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c683ddcc2bce07f00d541c56bbfea016b9225df4afbc625162fce96d6d60b40. 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/TCACX1768221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e64f40631f36e717a668f73079f09326408b7ea726cbf7f7a1b0f0c3161c69. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCADC1744362.
Inner Space (feat. Donny Arcade & Krs-One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f7db138167ec3d11b3dd0d6ba0c544f8a9c88f857c049884168c3893a18577. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/TCADI1763813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552f3dc6c01044f102cce73de93b03fce88193e48697d074cf97f1a4a2959276. 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/TCADP1869316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4785768ca3be58bf073bc28f5a10602fd660eb1f8a53a803395da85b68f477. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCADP1869322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de611d3ea3f1665d82990f3bf58d9a3be8dc96c041fa665c98e04d153389c07. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TCADP1869313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd996f8532595785f935327f05b80ff7869d2d5f80eda648feb85608ff6c8e437. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCADP1869321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33bdaae0561eee42cebd303bf8de073a64c339185a31ab29bd7b1ee06389639. 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/TCADP1869324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68b757ee79d78349cfbeb6f0f49402d36feb67d80a44b54e3c6641042c57d20. 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/QZHN81960784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc78db7ef6b75e2e5534519b6afe4379ddb9aaf471f2daabea44610f6c90b0cc. 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/USL4Q1945817.
No Surrender (Jackson Turner Tribute) [feat. Jackson Turner, Donny Arcade, Crewz, Apex Zero, Londrelle & Richard Vagner]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4d85c6b3811db907f2d37b89a4fba9e02596ba7d25d372db7d7741047e6042. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZNWS2059587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd44827a922ec757349c145fbe3fbe3c734c1b49dc5e7fb7f661142b613009b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNWS2059588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e6a7869b9bcac13da4702936b35f640e5bcde4740ac6fe15a059a75343f0c3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZNWT2004278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3288cd3f98a38288e29fe323e0fafae7a2883d2b747d289a4cacbded5aebd6ab. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZNWU2091394.
Inception (Stress Free) [feat. Donny Arcade, Ras Kass & Analise]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea4bfba5665929cec84ed2badfb12bc87e92447f83eafd2a8de02c343affc89. 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/QZHN32119170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f792303632961cd4af16bf91db1d783275caad7cbe66447c04e655efff05226. 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/QZHNC2292693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c06b21a85982f16bbdf2d7a51df39667fbebcefe14bf54608a4c68e7600126. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QZHNC2292694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92f69eba9285bce89c6189925b1a1a69a41c3f09e460d79f70b3d4007d9d5d2. 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/QZHNC2292695.