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 0x95cedbec1768ad9800b9e0f5ea25898c69dbc42b33babf08f667ee1882c127c5. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dcb76548-60db-4c64-bd9c-bfce5eca3def.json and https://artists.proofprofile.net/proofs/artist/dcb76548-60db-4c64-bd9c-bfce5eca3def.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 0x04bf079ec173c9cafe1d2251de696e6109c95b092c7a83747ad9b9ac5dc4a749. 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/SE6HN2374995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0eae1d75ec79a6df507afe47ff0eee53a6ee40f33b42f59fca2f151059c906. 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/SE6HN2374996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26809533c61503f4f3b0760b428726ea9cf74f0a23c85076f5ac86185bd6d9c. 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/SE6HN2374997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07c94ea204624cd9e5a246034808a43b2606d642b730d42a14cf676e6776e76. 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/SE6HN2375000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd677854dcc3d42607f2cb399fb98e59f1d63f11c5d97854e78edfc08aaea00. 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/SE6HN2375001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2d948170ff3de89019f8a9bda667c740f95cfae8452a47e928fdd8e7093fc6. 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/SE6HN2375002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19c8d1761803c3be47db15bdc1a1ea9901d6e64a274d0cea1811c46a6521f44. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SE6HN2375003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c63e601a80982aca1e3ab0e21286f5db530ccdd78c83254a918ccbffc0f87f. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SE6HN2374991.
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 0x4934d7473f3b1b1bb06906d38d9b1afb97693f11e0b877455a449b8647a27f5f. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SE6HN2374992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f55899c98de333c286ff32f5cc1e6b6379f31b4c8041ffe4d698c38da42eba1. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/SE6HN2374993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6d79674e65cd3fb87029ad621f3468729095f1a882332b18c299a5a963c915. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/SE6HN2374994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25562e447c06516bda2cc760a65684e4cb742d61d38ade21bf08257e0e0f0198. 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/SE6HN2374998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0e93a5420baeeabfed2f79265072c0c83f3534ee28a4be2bb1513c213bd419. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SE6HN2374999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8349a1e0f870c7ff4fd6fa0989216b20a0036077b5890e01eb9acffa5a2ebc7a. 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/GBKQU1544306.
Dark Side Of The Dark Side - Haisulimanifesto Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d6379893369dc3833083401e5dbe4861ed9a35b1ea18b79c77aaf01aa8c882. 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/GBKQU1544310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293ef5f535151dbbf7e0a9761eb8c7925bf473eb0c7c8717f3e0e5adcc1b9c22. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU1544312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5dc028267840390cad9fb8c78e3d9b89861e1e3ee9b11dafa3aaf9ea077250. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU1544314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb977b054d8707a14b1b2ac7553d82c932333c6119becd214d88783e07ee8507d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBLV61818204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd924d9d9139f144dbcd3530ca9c85ec6f9836563994364fccdcd183e6f7f4b5a. 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/GBLV61818209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb4a9a443c3721148d4065476f4d7f9aa3161b293586f5d4522cdc91e797c4e. 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/GBLV61818216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda1b5c4308dea7ca45d6b35b60bb2a52341650855661934eb6506186d536421. 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/GBLV61818217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e743596d405b45582b9ea34f7512b3b3a00be4ae0ee351443c1bf8241c57290. 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/ATR981171707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a12faea85a6c895516fd614e586480730b15cfa02967ffb0e0252a47318564e. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ATR981171701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8ce92c48b77a6c96d04053586d645aee340f0c8a4e210630a5e25c73aaca8b. 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/USHM92279757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75089d06eb4bcdf4e6a051ced34424f0a7379416486e01172040c03c7c62b211. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USHM92279765.