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 0xa88234f71048267693c9f6fb16d607e65e4d3dbda57edca8fed10f49f250aa71. Chain 2 (Bitcoin): anchored in block 953599 (2026-06-14T06:43:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0c478471-4198-4806-b557-b16b354008dc.json and https://artists.proofprofile.net/proofs/artist/0c478471-4198-4806-b557-b16b354008dc.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 0x51f85d625b1b84a49e4e2362b6fe93d974b8b8c9803bb774266d84a3114decaf. 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/ES71G2054961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08c66b4c7f220acd217a9266cd4cbf524c9836975e3bce1096d604147a9f4f1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2135682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef57955644ccd4b71e129a6d2084019fe52ae9d115c44bf01d82e8e5a77c3098. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US83Z2135685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6a3298c826fd2d84fed931b2a003eeef17310b29885153d813e471aa344aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSMU7101936.
Danza De Lluvia (Rodrigo Gallardo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1269ad4568249836d427b7ca7774efa0f5d9a151604ea2f672e65b8a180a10a8. 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/GBSMU7101937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8d30728c201e2cb2f1b56deb43b265a271014503848f9cefe802e392b33e09. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBSMU7101948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a644de2daa51844d36052e1496fc50eb7baa537d0cb91285446a3a339403045. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/UKU932382114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd99a3cc65cec3c93429aa76911a48021709406b0182bf3690b5bb338f01fcb. 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/UKU932382117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8258b17278e568801287f70a46e933498e1c76ecddc5ca6bc278bb4bfd1c9d24. 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/UKU932382118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfdb903581889f3862c82ae8b8f373f61f1b6e8aff9ce9320b8406dd6677183. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKU932382121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd9869d546f36186d00978958454f95525d3d10e34a1fdfabb311d78a0f568a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKU932382122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5edde203f45108c1356591155e201c88841922c0beef79b248f0ac84f1556ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2304036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1440eaccc4191101055f79cc08bbbde5fd3cd5bd8cd128c2e3ea020182d075. 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/GBSMU4487908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb874bc105e9aa883b305ddc5fdb17cf826b928d2ed872da2bcc5360de7dd2a14. 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/GBSMU4488129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee82d40c4df2fcd3cd3fa92491f1fd91928486c4c97ca708b0a7666f9297a20. 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/GBSMU4487999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6961a3dc749af84069126f5f0f3b9b571173ec97ade72b302ceac3927ea4d1be. 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/GBSMU4488020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e054a54bad2ce5b26c2040de5291dee56abc37191e2c7b86afabed7ba74123. 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/GBSMU4488091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f5750865d7f0054289db891e2317a5a04857097f84d3d8fe030dbd9b760aab. 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/GBSMU4488098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5c52a66aa56681ce6c589f0ac83f8f01df457309cad1720c9f9fcc398077e8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US83Z2304063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab615dc32b3f072fdf1eea3188d41d78c1b4bcf0a1111e543c6c32849da0c9f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2286360.
Te Prometo Cambiar (Tributo Los Bric a Brac)
Tribu Ancestral (Compiled by David Madrid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d16a3f2f78989404ca8c412556a11c8d222653a8dce661a1d2abd24bff640d. 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/FR2X42038299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38843cb5baa33c8decdf91b212d6aae20ec98c68d886fa6f26d3a19458dfbb. 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/USLZJ1934672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2621fe6dfa5d269b28ad6446d5fe0fb369195433181cfe901225d44857fcf182. 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/USLZJ1934655.
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 0xe41e633e603e2f5f27054fe17a7e774406b096c9dc014b8dca344ff3b94ba693. 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/QZDA51842119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9abf1a6ccbbb35ab9c6ae98d851205e8c1f6acedff83f9d33adf5b3901e258. 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/GBKQU2189082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232910efbe9f68a63feffd7014de4d1c75db0232befd12f13ca21b410f557274. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/GBKQU2189088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c7a88910899fa97847641fbae8f46584003b982012d94b718baa49011e2626. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/US83Z2478225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f81037a438270113ae15944eb54eb686f3b913dddc749f63753b7ad68e2266. 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/US83Z2478223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab21ab9ac4c976f36b4866bfc7b82a64c8823bd6045ae98e942f901a031e6ddf. 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/DEH742180919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906164ea26a00eae5be4e28b45e971962ebf417fa065b619da72155937f78c47. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEH742180925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f88eb77fd44bbeb0caf8785798cbd35b1a099baeec0ff449b45eb85d324109. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/DEH742180924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f2a6f75ea7e66dbbd49e52f942414bbaabc2a302533193759f7c8e5941793d. 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/US83Z2482611.
La Presión de Mejorar feat. Niña Tormenta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e5a4c015a1858129c1893d8673d0eebad3009b8922c03a1cc588c4df1fade9. 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/ES18B1806347.
Viento Danzante - Rodrigo Gallardo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf6415c1fa32dddb6fdf38c6b85009ffde00998c574c8efed90c54bb95c50aa. 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/GBWUL2125388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00309c91d461dd9bdf567a0e61d439e79b3c35a4c681ab27c349af09c5183fd. 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/GBKQU2040221.
Silice (Un Compilado de Productores Mujeres Cis, Trans y No Binaries)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6998154ad9baa342681e52b908f0f505393edd8bb8c6ccebe36ee529ca8b6a69. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX202051928.