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 0x352107f02c32e501dd0535faacf9d731eeebb8d0774d9c9ee2ef37ce33429f1f. 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/2d56847e-bfa3-4c04-a4b6-66775faa27af.json and https://artists.proofprofile.net/proofs/artist/2d56847e-bfa3-4c04-a4b6-66775faa27af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Que Se Oiga El Ficticio, Vol. 1 (En vivo)
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 0x6ed9266b542a50d43e78211f4796060272088eaeef8cd6a9f3c022c0825ac274. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:17:58Z), 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/QZDQH2266180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc776f47ca7b583aaac44908cb18ed64cef48256b13f8c05ff3073f076800851. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZDQH2266183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ce4babb4200ec7d70a029cf907480e3561df91e4a4cdaa858791cc9004ce51. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDQH2266185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9859a6e91f248e7499b87dd63179496b2c353771da4e2c8c872175703dab6. 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/QZDQH2270452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d914f7fa0eb552697c612daaa4a054b0c031c95a43e999f6ea85dbabd8981. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDQH2359561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94000a18b8b43b45d038d8b3d9acb563126de9d4ed3ad6ac152d28f38bf8dd69. 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/QZDQH2359563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfa2ab0d467bc2bd189d42920d3cdc2d388740446725d70ee4bcb0cce6d3ecb. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZDQH2379239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dba6a2c3bb9c18e8df7ac12808dba2b86a96d9e025e2439c43e7d12250b984e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZDQH2379240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca3983edc3e42fe35374a319174171e856bfc74577a674020c0131d800dac35. 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/QZDQH2421622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9636cf2a25d29b8dbcb3649d8dd5b3c26075c83c80aaac8637264afba3414ef0. 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/QZDQH2421623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc279d540fb38c43e603231534f0fb079044b1c1e061be79b6d8223bf7e7dcc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZDQH2421624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b03a82e4921a77c1039d1f3732531d8216f2dc1486acdb1feb916842f554050. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZDQH2421626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ec1bd50424b0d3537f6596b0fbeaa112a8da1a313af5f58b35b38f69b0f6c4. 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/QZDQH2421627.
Que Se Oiga El Ficticio Vol. 3 (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d095666408661850bf2d85751b2a663d4e7c1a436afc3e7d9914d80d975e5cd. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZDQH2501678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0ba1febb54128b597f1243fe9bc52928712aeca67734c87f86ab384a9edd81. 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/QZDQH2505407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749ccc3f13ac8e8d9ec4a9803af6317d8035a0241c4a1f1ef1a1fa79e6bc756f. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZDQH2513512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f7d2f0ed600541f0656a6896d3c496153b02d07f6f5288f81a20b29fa9fdf4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDQH2531471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc231ca94cc2f566ffe2898a48ff9ea9b627331cb40b511cf517e8f97b7a5aaa. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:29:38Z), 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/QZDQH2536129.