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 0x281715f948997ea44e2286b22d2bcce97d514ee10e3db345d1be95273da04707. 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/47f3296b-f9dd-423a-977c-fd0230ac74fc.json and https://artists.proofprofile.net/proofs/artist/47f3296b-f9dd-423a-977c-fd0230ac74fc.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 0xd70b1415e0ae0509cfb26dfe514d568d67dfcbe83ad597d2a9871892b6988243. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae74326be42816348ca92d2a934ce0e0bc8dbb6c4e0f93a5cfa89e345e3aa14. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBAAA9901405.
(Big) John Wayne Socks Psychology On The Jaw
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a7de16aaf3c62792add776a1053f206c6adedf7fee2fb433794e6470a7c454. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf338956cb1f8f0d01bd28b07be68356fb2a74c884454a3f5dcb437f6c2cb172. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e737e541ddfb6c4e33372fdeb85887e4f0aaa92cca92d4ebb26b0befe70494. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a5425dcab7804405e034a4416b18c88ae0bd64643bfb9ba0ec047211819cf9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2c0e4b02578186b4041b12b7d0faa1b7123208566942938c69d358a712f432. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901411.
Mumps: Your Majesty Is Like A Cream Doughnut (Quiet) / Lumps / Prenut / Your Majesty Is Like A Cream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa7c3b7d6b371e8ec29873c39927a961d4cbf973803b0050a02698fb2c5854f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901412.
(Big) John Wayne Socks Psychology On The Jaw - Reprise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd836ca6dcf4c08f0661dae18f09ce32224cd066e3e38183c2528036eb40962a1. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T16:21:12Z), 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/GBAAA0900186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d87ca27b33c18b909b1f1ba39ef344d17d490101fc5018e1ae29c5d44c1e8f0. 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/GBAAA9901414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ed5d4068e95d635520facc5cb18579a6e4c95a500874a37e60e6b3dbc37014. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b019af4188dba39237d8611e1da3c6c83103658af6c75395b0a305f933fc9a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:47:31Z), 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/GBAAA9901416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0997ded8bac3f8428d216a9c8ca51fbd4d6db0ac3113adf3999fc810a6a29fec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5698c6db430967272490d6e1ce6e979c2f05750a179940ed568ce661b9804665. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAAA9901389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d787dcdbbce995cb3144a774c3593592932d766b5835245d75bf2298025d9ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068ffa24dafd681e1341f27ba3161f137b4e1ea84a4f7fbcc8490f742b06f206. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3276be9583cc89527a2279654070a294678d36e12796259cdbe6b01f1d26d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e61672bdccaa9d652cf0ff4af4c98eecb0110a8db71666d288379728e8df69d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cebad3574dfcc7d42d1812bebe2750a3f9c0d026887c98c1883d7139fa93508. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fab940503eb03ea8c9bc97fb6596c9a1f7a8b2057df3c0dd8b6b561e2b46547. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBAAA9901395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0248b3456b3c1f770bfe372c5d79d76a8d20c6eee93bb73a365f11438a96c593. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c75b99a2278868a96d602f032d97920e00c87bd770877b515836d967b353b0. 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/GBAAA9901397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e225554bbd72f471472fdbef717b71f64d09ab6c6b16bc93a42ee09d3a27e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0494b1a7124b94d44aea2333b21f8cdfa82234166f25739f9a2b07668762df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901399.
Gigantic Land Crabs In Earth Takeover Bid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a409ae6d72a2dfb4cb6d4b9fa2210fd37122617afaf6d0a158c71ac93e734e. 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/GBAAA9901400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91839571fbb03a96217a9071eae18eaebe77ac6935dbf96b19656f9b94c2314. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:56Z), 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/GBAAA9901401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994ea83d1f2962bb9a5693373a4fa6aaee39d2c368bb6ff06185db379f19bdc6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBAAA9901402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853c44cc3da9ab68d2c17b3fa8d7fc364aaaad7b40e5654ac9345889b6aebe34. 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/GBAAA9901403.
Losing Our Virginity (The First 4 Years '73 - '76)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293403b1135ec6aeaf493f98496ada240fed0264b3ae14afd1e21ede18e033eb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBCEL0800668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1327eb707263954a733f1cdb9d86b22d9c021c081607172e09084c701bec2709. 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/GBAWA0338403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06d18cac7581dec60fc66bde4d2a3acfdb4e2d0f255dae089f79a09b3aa1d66. 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/GBCEL0800670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8191eee1e3862190ce4157bcfd49383f823902dd3cc6b7dcd6bfb1b85ce89f9b. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBAAA1200333.