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 0x22843e1ceab3531ee243afaccaa69c5ac330d7053afa388543bd1143ba87c802. 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/9442c897-b8f9-4687-ba05-dce3bf09db0a.json and https://artists.proofprofile.net/proofs/artist/9442c897-b8f9-4687-ba05-dce3bf09db0a.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 0x7aa4d13949be16b4b8309b748fdaae9e76a4e5e274cf694c72e631ec9aaec392. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZB4J1877189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be5e20cb322be09994a455ce504fb8f483e3b3b42a9c1792ae828b3a2497ed6. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZB4J1877190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509f496bdd3510d282ada4866ff2bb9fac0e1cc9f9f245de55e7b35b0b7f4b05. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:05:38Z), 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/QZB4J1877191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d878f591615df21bda585505bfaa088a9a939c06b9d10405f6cc9899c511005. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZB4J1877192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa548e7bb5143542551821de1d4a2557cbc745d85039c55deb2787687a36c705b. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZES61895441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cee8299764bf68b61bd343b7b0f4d349aaf65c8f16196b768729000a66d22b7. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZES61895442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b66864781003e8230f3d5711ae575cd73bda2bfd747e05268b13e5f20968d7. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/UKTE81900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8918d708d05df96b0b0441bb08fa7a130cbb6e709a46587d8c204183715459. 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/UKTE81900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95cba126c1d22fd2975980a92d1f2fc984cb94587ba3a14fa2a033e6cd7a1f3. 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/UKW3Z2000495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe853351f70bc2dbc642eb9d29cccdb741e4d6bb62ce609fa7c3d15ccc76fb571. 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/UKW3Z2000781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04da8a94867338a36e7120aa3e29bc373d288266d82a71b74608d1b120770dc0. 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/UKW3Z2100738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32de8085dd7fbe3663d1fd04a45976c0eed66d3e1ea2cc4acdad7897c0b0220. 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/AUMEV2206196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb9d72c69a06023145ee06232a6aec535359715c879a8e85cfa4015ba8ff3f1. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM24S2204286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7220a88852c1ab897a875b694917a7cfd1237c1ca578044e605406ffe267505f. 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/TCAGT2323966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565f91373622e15002ac74f4e0dd410ccb3978b4c4b3e91e3daef248bf771126. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TCAGU2356804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91cc1f321b7cfdc28398d712136ff91a525bda3dbec0cd481e658cb3445e258. 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/TCAHB2325428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773c40dec825da99be4392d06a82abc2a6a1589c56988429f267c4beac726d20. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM24S2305587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a261c103ca58278f4bd75863a2398c60846fe0297801359bf6319b3f888393d. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:36:38Z), 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/QM24S2305576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d94b57dd01188f0c9556635e804796d3efa7a1b6889dde35e05e5a894e94c5. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:04:21Z), 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/QM24S2305585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603feb171057a991e04110a4ca5a9b231dd7ea0d495e4e8d6d96bd27f3e79fce. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:04Z), 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/QM24S2400144.
I Never Want This To End (Slowed + Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51499c92334f3fbe3b38cc9fd775f2406d4da2e2eaefee9a7f3b40ee03df82a. 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/QM24S2401209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1ee3c1157e87a3bfbfd0b257d9f405f19c1f4db1e2efcc58fd6876fd948c6e. 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/AUMEV2423636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac53469bbea872dc39eaf815ac3974fae97ac6a3ce9f267a74463cbe7e34c22. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:54:42Z), 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/QM24S2405304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0de74b2b0cc13d3ffffc5ee28ac69e740f89ee9ec2d7d7ea927d95f01b7f3a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:02:53Z), 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/QM24S2406568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c06320c31efa4c0dbdeb53c352e17492f28e0a0b9881d9feda9d0d4741c86c2. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QM24S2406567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b6a00860615eb5c14e4cf25771862f29503c8771f8276764469826016fe656. 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/QM24S2406566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4644fb4467d1748b1faf231b8c55c79746416044b72c09b6283512f40d59c0d0. 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/QM24S2406562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6790e083668b2b09931d150bdfb667e631ffecde6183c4ec0c8b318c7555ca. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QM24S2501414.