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 0xcd55d7a645903db227a872d666e93a9454629644c24b8c32a24f56c2b75bbf13. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f953fdc1-71c5-4911-88d1-4086ef557f1c.json and https://artists.proofprofile.net/proofs/artist/f953fdc1-71c5-4911-88d1-4086ef557f1c.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 0xb522dea044ad17776343cb0ff3d13b8f426ae3f85cd6144f8b237aaf481b4e7e. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/ES7730608299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea710df497140d914306bac1347da43234a75fe4d301617b08bdc80549a2fcfd. 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/ES7730608301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb01d4be17d4fe4f710a805a93b9624692d2b9dbc51bc6e1807fa3cc44903b1e. 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/ES7730608284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181fa1f595275b1a7129ba139c2ad67c1b5c65af475cd0ac4e6231e7a4c8663c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES7730608300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc75965feb50dc2bbcabf82af2226b5e717317f4c558e5b443424a90ef71961. 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/ES7730608278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3328529511a007652ef1061185b270df9e3b54508c7599b2ceff61a30aa8031. 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/ES7730608297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5045d9345f265580ea0b14b4b097e2e6a2a363995cdacec0adeb1b1888fed15e. 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/ES7730608282.
Permaneced Vigilantes...Fidelis Servus + Ps. 131
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe976f50a2f86e6018ab54cb7ffe587a322aa063db74f1c03ee610c50fc7fe5e. 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/ES7730608292.
Las Bodas De Caná. Quid Mihi Et Tibi Est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607951c4e62faf2430346c5392c3a9480a28288208c01c94fa5a68c5511ee194. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES7730608302.
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
Las Bodas De Caná. Dicit Dominus: Implete Hydrias + Ps.65
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eeca41d7efd1bdd898811d4eafb7036d6c9162bf7919efb68bb4162488a015. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES7730608304.
El Sermón De La Montaña. Videns Autem Iesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3893f08ee6383af73ccf727f1af844b4c339911924c090d675cdb9506fc821. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/ES7730608283.
La Antigua Ley. Audistis Quia Dictum Est
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb6da02554429a0fd4eb0e1e7b5f5d9153616ef264819c2af3327e2bc10617f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/ES7730608305.
Las Parábolas. Simile Est Enim Regnum...Homini
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd983e33fa333c725afa05371cbb2fc62318b0d19e273e64e6f9fabf2ecfb322. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ES7730608285.
Las Parábolas. Símile Est Regnum Caelorum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaac7b150804c0f3f84bf23c6d661707a3a0e197a59066a3a88f5015d9045c47. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/ES7730608294.
Las Parábolas. Símile Est Enim Regnum...Sagenae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da5aa7fad843111a87dfe19d21b5560da8dd1be14d0478a076e1c9869815691. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES7730608286.
La Mujer Cananéa. Egressus Iesus Sucessit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb114d1d5ae3466a5bb8bed1d465a5d251e2f44edbada3486516248c906ceb4b6. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ES7730608306.
La Mujer Cananéa. Dixit Dominus Mulieri Chananae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca5352fcf2fd3018c95077de39e74b6a9904d14402748e50105fec729fc03cc. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/ES7730608276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8628c526ce5281f368ac70a21d52cc5fac68a32cdcdca68a5c53d3912cb58b. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES7730608279.
El Viaje A Jerusalén. Tunc Oblati Sunt -Sinite Parvulos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c25718a490fee87876a257c45bc3b6228159ac8c0521db3bfdb98bd6468d4b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ES7730608277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33ba287adc78819e4a1477dd4591cd6832dcc372ceb410f97303edca3796e4f. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/ES7730608280.