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 0x1b7c79dfac9d4a80fb5e93b29b3a9a0233cd528a49889d08f47165184d2bff5a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2a947b8-e542-4992-8904-8783040b9db3.json and https://artists.proofprofile.net/proofs/artist/f2a947b8-e542-4992-8904-8783040b9db3.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 0xe5100e6a4f2f06f8e4b72211ca65c5c62e9c732c66d0390746fa83b813ebebe1. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZVEM2343197.
nico's nextbots remixes (Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa75c475d5c92530032969ba81f6dc1ba0e1c42cb7db3cce46ce936d65e6d6e9. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T03:43:36Z), 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/QZVEM2350335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd68381207373ccc969bb42ff75bc779198a6809ffdf990e0342ceab298cecfb. 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/QZVEM2350339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3142cf3eb20f8cdb81ecc302fbd26befdc5f61e4cca5c57e29d6c9e0334070. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:23:29Z), 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/QZVEM2350341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a0d8d4113330a8d10be7fb79d785e9c90ac318b4f6d31e7775e18fc2b6cf29. 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/QZVEM2386185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f55217fa366880b4b9777aaaa3d6ae4b125182b037f4dd91962a9715d22e269. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZVEM2386190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d4604952cfb7571e29837b53519836bff4141b488939eae4e575271929de38. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZPJ32365526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a9036560c0bcb6d27a30a129a9ed1320bb0ddb916ca2dafa23e67cba11b0dd. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZPEW2493064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943a01199f1d848c0e66a71e85123a39071852943869ef250d24bc9f2c0b8785. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:00Z), 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/QT2VB2439282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23250e507af489c2a9b439f42ce21b00e3e4017e26fcc6a7a701f50488291858. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QT2VB2450124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2aa0ccfda2e2198613a6fbacd81f726f2724e624ac3429792372f86587a2837. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT2VB2450125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0118b53be34cc29997a5514e3d18a6edbbcd977431f6b7daf9ed9a27ee6d200b. 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/QT2VB2450127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93a9863716b766a45a9b87c6bc16bae9b0ea00dc7372dfed1297078d7eb9b3c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QT2VB2450128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8089880e4678575d766c6245e4124603a345317dcd2a157e427a8a66aae8d2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZVEM2387903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4656b0d77ecc4bdf3251f9c76ca916e50e6dace3977159e60b684b10e99a5dfa. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QT2VB2498710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906d0ed624980bcf493493901037afb8597f89b02f82d96f81cc4a102dc9b125. 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/QZMHM2544438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79022886da1aa97396cdfba1e84eebbabd83f01b1a7d73d60e3d930ba3d27d0b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:36:49Z), 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/NLCK42229455.