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 0x6c572245ac2c8499f2e41664bd70e00c71c4aac4ea122060af2f435e918302bf. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/944dcd9f-c8fa-4057-ac35-5686b07fe3f4.json and https://artists.proofprofile.net/proofs/artist/944dcd9f-c8fa-4057-ac35-5686b07fe3f4.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 0xb785f8f42d6da8c84c2ad2840f47ed1f9f237c844d07f37a623881f526976949. 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/SE5BU2599791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8133f08523e09021f815ef821483fad6b6f6a77271f459f32901cd88c7e8dbe. 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/SE5BU2599794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5943714c2dd8382a6ad68381607baafb6d8d2a68e76dbd50f0e7aee3d850fb4e. 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/SE5BU2599796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe324f904934fb5075ba98773827d7eaab0bae75ad671cefe9116d2a4aed3d05. 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/SE5BU2599798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6adc3b74283c431b5d3b48605c626d5f35038dff77c26f3a0e46a0fb9df084e. 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/SE5BU2599799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31c519c643ece84ebdce41dae79ec9ce02f22778291b6b4b30648035382c756. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SE5BU2599800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8cc055d9aec196539a75333cfaa636a2ca11fe249754e9abed349d879bc7bcb. 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/SE5BU2599803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff5ff21c761d9ab172c4595cbd8a02ecdbee495c8470e454dd493f129e27ac1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE5BU2599805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0832c5620cbae364c150105b7a5fb90ffb6529414c6787957586fd19a08bb57. 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/SE5BU2599807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20327c06dbd11e25b980009536199e6dde84c1cf5d38fff6f20f434a3170c0e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5BU2599808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fee28113b96c4a972c3219530937d08a41a7922a348c40543b586ecc7aa75c9. 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/SE5BU2599810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80405cad31c0687537aa7bd08c28663f319cb5b509b8661b080730b53a2f449f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SE5BU2599811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eb8556e2166dc9a945b3069f79d432b07b7dd54277184521718016aba7aa6e. 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/SE5BU2599812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f5e5fe6bb51c21306466050e8950ccb7e32f539a00154e20f17ac94383c9ce. 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/SE5BU2599814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8d50b8cb425a0437a73a3b7bb4a3a0f547c13154f76321012d65e89e173255. 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/SE5BU2599815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ccb2430efd1da543fda7b9fb58223bf820b04ccb959bd33549d1e934277887. 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/SE5BU2599816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69acbd2aa154057339434b8efeaa59360121ee8bb11fd0408700496b72b4b379. 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/SE5BU2599817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c710b1619b53dad48507bf3e97ef7656122f2902093d85da42090e285a6161. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SE5BU2599792.
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 0x17cbb7c982051bdbded75c653a4ef02988e9b7690a5a5dcc1a740fa5459f89b0. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SE5BU2599793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66fff137ffb273bd26d67ef97070789033aed4ef09bcad14064fcfa122817d3. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/SE5BU2599795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaac8e9acdb9a9b7269044bdc2abbfa4b0bba05299aca1814b18d419f7763d5e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/SE5BU2599797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb281144ce8c5c69aa9afee5a2edd3abccc80c458421b253436a6a57ee59147. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/SE5BU2599801.
Dame1Minuto (feat. Halberto El Cheff de El Límite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649c1ac5d12c80c7cab23f1dce91fe189cc5321f1b738e14c05cb5e9a0abfe2e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/SE5BU2599802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637eb8e011012a67337ece066f21debab66f1c64d48ec060b89750f3a05be5ec. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SE5BU2599804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289351655459e5941bd847482192a5e95688135fe606807632ecbe66019a535b. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/SE5BU2599806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac68639c5ad7059d7f93e65dea239274c29f0998c6f7b0874f8972a9c0e74a33. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/SE5BU2599809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd519b8cda02cefcfa59e6c19b2917423af7a0e3ed96262541f15ec621f7399d1. 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/SE5BU2599813.