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 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 0x8f66dbb60cf9899bc0747bddda1e149c8ce454936d00e4d3920a51a0f293353a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/833d8187-287c-4cb0-86f2-644ed8cc5729.json and https://artists.proofprofile.net/proofs/artist/833d8187-287c-4cb0-86f2-644ed8cc5729.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 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 0xae64566b66f20a8b1d6fe4cd6c08d45f2eabccedd897c229fab12d54fc07d925. 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/QZW9M2304487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0df5c834813eb6645cc50bcb8d066e86bac90ff04a877cca8380e0ce6faef4. 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/BXIV82443081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523ada1e2b9ca02bce51aa705bc761c663c99a655203ddd281c9776a6835ea94. 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/BXIV82428888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283ed8ead48248b06232e968eaeb8ffaa990f8b913656b48e5833d2f5082f06f. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/BXIV82414322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1539c286d9c72e0ed623c65275d7fde03bb41eb3245007e48a903629001519a0. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BXIV82456813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed4b9bb010dbbca699e49783cdd589b92b1f82d9e5dfd9808d4edb89b2f011d. 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/BXIV82372696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8119a11ed25bc3f5208a0b60613be15669aea2b36403a0febfc6a081d97efb. 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/BXIV82354210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e35d0f1928713239ab02b58e9bb2b5b1d138ab492f37ea2b061454373541d85. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXIV82378463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac6c2546ccfe897e3eb2544fdc43fa88f6bc99b304223f038db92345138d8be. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZWDD2417345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728e246f7f8ff91eb561ff51313ef7a0e373e15730f6a5d1c0113961b6410416. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZNJW2409480.
# TU VAI CER AMANTE x TA D PARABÉNS NEGUINHA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cb7a29a66a2083daf654451758964128775d85fe06c2dc6d6e117460c4405a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXIV82484912.
# EU SO DA PROFISSÃO PERIGO X CARRO BIXO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94074644c3fb2294b3428c885b4cdfd08055b948484d54a562c4d7e337626b3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/BXIV82415202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40cc20975a2c26222bececbabdced82cb1ee78036b02dba0a1b1a9f2c24a6674. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMZ92470033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47352e2d4efe8f288b5640d223b020e2c408d9a21963bef728447b61844936e5. 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/QZGLS2486019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27020ed61179e9b1d520043ae3913f30b208936810b4ef636736ebee48b76efd. 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/BXIV82464778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a1c98266481f3ea902dc70ef74679735bc1d3f37abd7e72b8a75a02ec7653a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BX7O92400021.
Eu Mete o Pé do Meu Barraco, Partiu Bailão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66743a218e35349c8a5afa6a2491c60c4d82772c17485fbb858ffc5b1a83dbc. 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/BXIV82415266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4713b660b64f078c140af1389181bd93c84314ec6a324d7521044074b1c40fbe. 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/QZW9L2399894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x736340398c585d03823d91890e220902622ee561baacd550f7e8fa1f1dfd0684. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BXIV82345862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539a539f4b6ab3dc7eda1b684fea96d05ece8058db01e232527916ca1a61c411. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKCMX2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1853babd4697d819e54bd66e266cb325fd599e1d1481f5dca5712bcc1182b06. 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/BXIV82390817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d6fab7aacb10efecebf89eb891984b593f76bb050326376faa59eb6335158c4. 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/BXIV82347580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2763cafd69553a40b869f43d1c16fede0e61502383bce71faa041c06443239. 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/BXIV82443141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3f39cf191f358dc78b9653a9ffa2dd899ac2d4bff84d9b22e91c44c70ce29f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/BC6M22420839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70db7eaa02940cd2d230e9cfc43c97e1046d6e0bc6d3aa589e0de2c8353da63a. 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/QZ5FN2593639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894aeec90a2007ebc7648d1133fd9f5687d101fc3dbf1186b13c769f5c13188. 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/US7VG2573990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3124b6f8844c1d2f321c101dd59bc71363c40f0853c9267721057cb6def8d6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BC6M22423419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a9d4ef659e8d2eccbd5bfa102ea16b810d5bfc68169ac42b8a9cd1c952b1cd. 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/BXIV82485463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9fb9b6a196d34443713364b38ec1556a5534fc1f46c6f89bc386654f74d99b. 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/AEA3A2585370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ece2eed63e874350dfb5df0eb97b6e74a275d21e918afed7b474e8bc8a7e31. 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/QZTRX2572940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f00f23cbe8cea0f109ed1a39ad8bf1ee805159c6c31d38814a7148e0fe4dbd4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRSVB2506440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6bd5d0aa9f0b0daa37068fea581caf75f1c6c4ba6c383d6f4bb2f823655ee8. 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/BKIUG2500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e64a60bd3524480e9a3e3d49a2c14a0bbd72d93a7109408203be222ca05c4b. 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/GBWUL2535445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe18addba5a81ad42b52de3b844213f606ac8c5f108717193f87d2f2a4f7e588. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GXD7V2564472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e7480ab5eaa917ec1aa38da6b90c882d27ebd3d343f8949a21030b36ae96dc. 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/QZ5FN2494231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e7480ab5eaa917ec1aa38da6b90c882d27ebd3d343f8949a21030b36ae96dc. 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/QZ5FN2494231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f257e91ee6f8ff6f296d4206851f48454b33529a821922257b7008d31e9f8b0. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BCIGI2200001.