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 0xd2eca01836e449151f28a373776c1946e7301c2c582eea7dd4d364432ab9af50. 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/500d4f33-1642-4d53-914e-164d559db2c5.json and https://artists.proofprofile.net/proofs/artist/500d4f33-1642-4d53-914e-164d559db2c5.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 0x201a2a24d6e360eba464fc188cee48733213d4590478d7480fe54ba908e589bc. 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/QZFZ71998562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3526d4d29cd655457b8f15e6057b5676825780dcea5c57c8f15dce972dc05a43. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:15Z), 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/QZFZ71998563.
Un minuto de obscuridad no nos volverá ciegos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3818fa573ed39b1732437af5501775e13c0df94f7ee6b0164f763c17a0f1a871. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:09:32Z), 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/QZHN31906480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11288e8c229315616ef732cc8beec2fc90b5bb746787a79b09a271b0c38f503b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHN31906481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec28b4c8b890c9f472241ce22458a4f7bdd30dd33db1bc99507a6f8de2ed193. 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/QZHN31906482.
Ningún muro consiguió jamás contener la primavera
Interludio I. En la búsqueda de mis nostalgias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b8ce4d2f24c724664d9277929978c17ea96e374d2ed8df530063f68a63b8d8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:57Z), 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/QZNWQ2024759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb324e0258e2e11640713ae4ab7186d09a8f95bd278a1656820a9e10f1b476d. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/QZNWQ2024760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe1dcbad8318bee00993a99a2f22f0b1f0f920a17e0b1b7ededea2ee5c0418c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:05:29Z), 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/QZNWQ2024761.
Interludio II. Manifiesto contra la productividad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe2b917124cf031601f313c64d93ed8d6d2382e8928f3f7eb54ebe5d83eac89. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T11:06:12Z), 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/QZNWQ2024762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2638aaac562832144a07d29f286204991ed8ee24992efb873f61ab3caa7db8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:56:55Z), 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/QZNWQ2024763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d32826ef5dda39cb94df2625393117c24fe566dc905670e2fae4a5e06d2fa8. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/QZNWQ2024764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63d0e12141edb2a6504fee660854cea22823ccab72ca8111f02eb279fe3673b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZHN52240933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47a025a0cb1b11e6c24f36b50229f37596c966a757aa716a24851c49401a579. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN52240934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424251f6aaddf372644f1baf706ea47721b3fa0358ba9fc77400d91306c32902. 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/QZHN52240936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8b22d1d2eee7f840996e020b77edc60377c284eb20b4e3147a5c7cab6f76dd. 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/QZES92342359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756a73254f03b7476eaa6efb9c39a0e771be76f03dba5675c07d50c526905945. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZES92342360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fae54e87309002bf3f5719a2d8bf956fab53a20d0af982a3cb34158afa3dd07. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZES92342361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c5d7a35285d396d62aa9c9068bd84ba39302f6106b7da972080f41ae41aa80. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES92342362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbd89f1b0e6558a2c428acdac3dfd8b7b0e4caa5e423cc78ccdcd1c07646972. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZES92342363.
Orbe de Almas (Live][Recorded at Permanent Hearing Damage Studio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2229e4d2a7246cc2375fd0e57cc056548739c8cf75b3a3316d0be20f3b45a1ed. 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/QZNWY2416873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f78c0ba1e75ed5aa7bf3a0848df8e3e9909b51f4209a97ab241ea513e060070. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZNWY2416874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aafa9d46e027728852f83050f9d5a356b3b1272f796917f8891d61397e24b8. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZNWY2416875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684fbf7c24760ca8c9d815cd9935e169bb81e2c2c6868ec93eb0808399efeaaa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWY2416876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f73dd66c84413230f2da25f882843e6739547673b1ea215520d6c08137851ac. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZNWY2416877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a02de7b3d6057fd468c799e9e4581b6642effa91c48aa0d6a0cf1536b2c13e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNWY2416878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dd35912aec3c155f18a859814da85e6ecf7c209ac6bce15ccf7b7301102a56. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:43:26Z), 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/QZNWY2416879.