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 0x13bf4f7d41ceb50a1e8ecf556e73e65a32c9956357926099076f22ede054dbb8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5be2bfe9-e9cf-43a6-a1f4-1ce12ee938c4.json and https://artists.proofprofile.net/proofs/artist/5be2bfe9-e9cf-43a6-a1f4-1ce12ee938c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Flores Hermosas - Cruzando Cerros y Arroyos
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 0x549cce83d358e5dc2581368c86fb20af73c370586d69e4f366f8cbfe92327a06. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZZ972416451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ab85096cf36a48883d219b7f635ed85983789129a258aa758e7c9e3cf01b73. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:33:27Z), 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/QZZ972416457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf6cef053bae647b358a8092182796bbc386464fbaf6256263f6247d1a5bdb1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZZ972416459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc482b4d2c3828a3fdebb64d1fb1a2c6443e93eb7d3dcc6357ed9f8e7e602a296. 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/QZZ972416462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d3788fe16efd43748b9ded35d39a39f668bce1161f56b3f377b2cf4c7f93b2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX281965855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c11f4b501969998047c2e470fdd84425763fa76a15daaa4daa2b5fc1d9a365. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FRX281965858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe758a6811830b688b5eaeb719ff66d4c56b4a005722c4b77d177e18b0aa482fc. Chain 2 (Bitcoin): anchored in block 957541 (2026-07-11T08:23:18Z), 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/FRX452448970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0b57059fa0a3829cc31c2a6360fb3cd95a5251886c0a67f42fa3ef0c4b8dac. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX452448977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68781f8cfa8b91295cda018b8fd081580f657fa6c1d873f165fd40059823aa9. 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/QZZ972416465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf02c18e7c1e4da3a2a773eae25d0eea938c4725141aa77d778f6d2f6295353a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZZ972416469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aab0a8bb6970bb4ef5b2634c1357c5615f3c8e16692d169cc484ee58829a82. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:47:59Z), 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/USCGJ1361027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853fb9bbd8e6591d711a5e4662e118bc1802b745078bc54d3481690af5d6d226. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USCGJ1361031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2746a71820a71e5b507a07b68cb633b817ecc1b9f79a6811af2094866e79c1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:41:30Z), 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/FRX281944206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15996eaeb537555c534a877edbb8606b76a7dcca883f0ed896bb8b7c19d600c4. 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/FRX281944213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96fdbb8d55a809020fcaad3d4bfbc4015c64e79b71248991edcfd9fe8f08c34. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX281944214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef52b09faa60f8f281d7460dcd4a3787c0b0ce7df48a8ebbf77d9164771533f. 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/USHM21452064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7f50a5101057a27aadfa7770c5c0e71ce4fcebe0238f273f59e7dbe849ee2d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM21452065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc595a3ae625f14977e9c597f51ae728ba8a47721ec3a5ba578be18b48ec78dc1. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM21452068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374b058eb61d6a586ef4a7f975b91fdcce82aea840f642da9e45edf7b7dbf4d8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USHM21452069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65e4be18f0fe2500bdeac283b8a8fd0b0a7d5ff0a57caf227f5b3509b0724e0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHM21452070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5907037a664966f679f3b848f4df313a75d0ea92c899a55fd1d2ac23916aeef8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:03:50Z), 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/USHM21452071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18be58116aa720798f07cc8d81935b5adfbc624b61f93b27fc348973e0166f5. 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/USHM81426307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922bc2ee6b191776e4f7e39766c58150c7592face1c5a5b4ee85baaab85e2532. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USHM81426313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29302015f757903f7e04311909568fecfd8eb5c4be47b9db66eccf4f2305fb8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM81426318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b666072471e11ef25820771739f30298f27dfb729f93df9322e8cd5116a3bae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZZ972416405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5977952d7f78cc828cf23079e8ebfbcaf89e59775f33137052547bf4bbef9089. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM81471178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf3f3df980fa5a2c41ff3e123fa4709b708695cbd7a5f2f6ad6d6eab93e5a7. 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/FRX761546303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ff105f775689f614d211e91a7b598a9e13640a72cc0c44bd7dc4a7e57bad90. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T10:00:56Z), 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/QZZ972416433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7dabe3464c531e91e0fefc349072113df505a78993ebdab1457c1044471e0af. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:32:50Z), 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/QZZ972416435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d8c330a3b7b466b54c7a9496ad4b4c45a28d1da9883095681d4138d8d38923. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:04:46Z), 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/FRX991589373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecd0c1e87b0092c3a4dde6292b19c5d28085f0160f06876a08f96b91930328b. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZZ972435397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6736077171a8d1f3edf1e86e1f5e466aedef9ea9ed2d9fb4e1be3a0b020273. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ972435400.