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 0x538cce8158bd5ae3acb4b11e45d2afae21abfebab54e5dcabc3d93cb146df53f. 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/d2a07077-8374-43db-8437-fad0dd281201.json and https://artists.proofprofile.net/proofs/artist/d2a07077-8374-43db-8437-fad0dd281201.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 0x7d1033977ac1cfcb97bb21a72190a350156418436e880c6564e0eab63ecad4fe. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZK6K2036803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b18b9c9793a7e9ecd7d036e05b60ef0e86a313030f865cedfeccfc5beeccdb5. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZNWR2088369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9e74aa1472426fe747ff1be79a407e1f966fdb3ad80c203affb75e9e1d65e0. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZNWR2088370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e04829c230fefb92c44d7dfff29ea83df6058ef64c80108eed4b8ae50d24760. 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/QZK6P2080311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd2d00e4fba87b032add11b30499adc59156fc2ffad7d955c06a5819bc06eb8. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZNWR2088372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557ef0464598bfe411ee328dbc00197c67515ad26c7dcc1b7a2d4f169df00bcf. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZNWR2088373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ac6e92d63ceb82a5877df3ed1ab4e9da4b18c259efa9c47436b442efbed0c6. 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/QZFZ62141041.
Monumental (A Way To Free the Slave) [MVTANT Remix]
Monumental (Feel The Sun) [Matt McJunkins Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc0eaa1448d8d7bc312392063c10403992cb2b4642b5914b465597d35c14b1e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWU2231922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4782b15824bbe97731ee41f952cdddabc1d6561ae6c40d7f08363437e1f2283. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZMEP2224520.
Midnight & Angel (Framing Portraits) [Sheltershed Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa84e711e6ce40437d557465756efaf24cd36c97172e51379cecb75531bc3a3. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZNWS2384441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381aac53a517642763c4e38a462c0b2b48fee43d7f0a906efc2b55e9fc876037. 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/QZWFK2319852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd67036c6ae0f952130b088a2fc434f717523493d74cb2a89397debaf313ff. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAHS2311287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67138eb37bed84032dfb1934bf6db568ee6dc4abcb81301aef520366ab6d6e0f. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QM6MZ2434038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a70388cb3566a1b06117013e6ba37a9b3467ba2fe0422973312ccbfbea54241. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QM6P42483488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda2efeaecb7d5ec2a254ab56af4063de469e742ade971813c724b8cd70ccb45. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QM7282495860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d80db826892740b66e2eb7ce19f6ad23366ebd5e78558c081744dc999a8c66. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QMBZ92458152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea3e49c76262d5015bf9cbcc484e951a6755aaba2e5aff49b4dea4955bb7954. 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/QMBZ92458173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaa49ab4b16967fc28375d2d57d8237b297c9dfeb728518c3db321e8cf48c0c. 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/QMBZ92458200.
House of Serpents (In Lust We Trust) [Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aaa49ab4b16967fc28375d2d57d8237b297c9dfeb728518c3db321e8cf48c0c. 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/QMBZ92458200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9cd2fbcb24797872422ece4a6887ace26465648150524a34382224f67b5276. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ22144930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6668e998cfe8068514b965795785fb10b5192096eceee66a2407ff9b285f591. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZMEM2077367.