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 0x9dadad5f4d711b49d92cd3608b4afd46eee893b30a7e0238438387745d49d9d5. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e473cf30-bc3d-4779-ac6b-6532738e1adf.json and https://artists.proofprofile.net/proofs/artist/e473cf30-bc3d-4779-ac6b-6532738e1adf.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 0xb2a1ed287c2f955cf7b5da68c046d222fda602939d90212c6d6fa726b08cb5c4. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBLFP1919168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ada08c5c1ae008ae7e971358111a032ef0cc2a3c9fec96b93b60ceea1dfd707. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/AEA0D1964579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc21bc91c32d5f0092ab7d813df948b9ab5f3a157c81cb2904cda28b78b1bb9. 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/ARHSC1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c7bbf0df2e3fac136d962bdb00b60a76d17b0f7ac0127de750857b1b6f0e35. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARHSC1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a0429484f3c7019e6eff39f6a143e26697ebfd29b4a50776254aacedf89ab6. 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/ARHSC1900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064a3e767c170d2fc5c51a7102568e8300cb4f79ba397be26d5dcd9410a8008f. 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/ARDBM2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd287b916c35294b5778ec422573379c3d41481ca34dfcd87df0c77d0328b9d86. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ARDBM2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f572ca86053957717dfa9e407cb132c05b44391b5c77ebf2529a8cae7eedbb6. 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/ARDBM2100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205f71900b3708f373982527c517ef7e5c3d760effb9456723b1a8109dd4cd24. 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/ARDBM2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edc50c6165856c5e5f918f296d96a17e534be98072cc1f5085955bd5919ee86. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ARDBM2100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc129995ef8b1fa69164a81283a3c3131b43b433c4f72e5afe6d755eee85becc. 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/ARDBM2100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e38634d1efa9764d308cdcb51dd431329d82e08328a6a599812b038116ffcb. 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/ARDBM2100023.
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 0xdfe55463e0bf5774bf85ae24e0f84ed31eaa111748d10cc2356f31fb0b757abb. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/ARDBM2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da2144dc2a84b630cc3330572f89c0173adc86d3295b5c0f2fee6bbc4d93273. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ARDBM2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d26ae070b17730aca2c6954be5f64f874467b917a96c74a58ab9cd1f9a5432e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ARDBM2100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee4ceb37cc2b1297b78aafe37fda19a7ac6e2659ae79d579825454317d6861a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/ARDBM2200002.
Las Herramientas - Gladyson Panther Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0c226d95c43fcda5c0b5fe2013760affca7c40f9ee2f7b541e6004d199f2c9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ARDBM2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf48b1d979048d4e51bc8b7ea60f204c49bfce8411cb7760fb2f40e946ae9375. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:35:18Z), 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/ARHSC2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996ea40652f3a684c4d66c9caf65ff2d1ea48da7c8baf4326d1d90c44787455. 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/ARHSC2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cff4c255ba8793b0f621723a2fbcdfc787f8b7151e135972bee5a6c77357f1. 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/ARHSC2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac24cb0197c4fa992aadabbddf9ea93a6ac549a968907f3c37fc977718e930bb. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:26:04Z), 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/ARHSC2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe552056e2ad097ec2412cc2fc8a3014e23e740a729490ca1210a1d4159d13ea7. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:40:58Z), 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/ARHSC2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966eee32bab88fb4fccab3d4b00ea234da5ecf89f8ad5f313670500cca8f28ac. 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/ARHSC2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce8b21687b43afc2b58a0efed1e7851d92311ca684a1d603150bc2a6a5bc0a. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:30:17Z), 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/ARHSC2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a82b80d223feda6931032575761e345595ee449c01cebcf12ddbb971f01673b. 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/ARHSC2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd820454ab6de7da8beb386d1db5395d31f17194e30216a3487454a0fb2116308. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/ARHSC2400008.