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 0xe3da7d99ad9ebab00a17ce51072c6e0ea021fa4b67da107cd29a5e7f031116a2. 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/981b3e67-ae52-4fa5-9dea-0d1c01b42ce3.json and https://artists.proofprofile.net/proofs/artist/981b3e67-ae52-4fa5-9dea-0d1c01b42ce3.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 0x1b5a93494192c7d1d64a1088e87082ccee8ad94bf9ada729c22ec533c38582c5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRLBU0000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4745c57d2d5883784f1032f0713e5928c344b204e4c4968c49e3a2537139519. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/BRLBU0000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1544f1f089dd349ef8f003921f74bed419c8e67ab0ef75a675bf1ca7d4125826. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRLBU0300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eda87e7b1b0c5466e1e2911034d5c7db0cbe90664c07083879f314b688c8a5. 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/BRLBU0500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1255a000433f64054a05b39ec5685966accbc1f2854131972a599422963fa67. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRLBU0500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444f76005a3cbc9ba5fda52760a4351317533c543a06a7026c4b2b7f09b8f28b. 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/BRLBU0500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc909303bc33cddf20c55e821bf6ce91d5e1267604ab7f99d45f4046b46ddd330. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:23Z), 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/BRLBU0500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657fd2e0763d8c62f95c60e7dd290fcef20cac595f3fce4bf719f53de4b0f8dc. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/BRLBU0500108.
De Volta ao Começo / O Sonho Acabou - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd866f3d8a9300cc5f4b825b5abe12ddde6be0b9c0b9041c6c98564a4dc59fe1e. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:05:40Z), 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/BRLBU0500112.
Stand By / Declaração de Amor / Meu Amor é Todo Seu - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fce16d24a863ac56907dab78b9ce61ecdaa9c692695d8414f51f62123e99d4a. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/BRLBU0500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ece8873a97b81eec6e081d8f235c8f70ac1da3a3ecc7a2bcc642ada409d357. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:22:13Z), 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/BRLBU0500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd5eccfe6f98484ac1cfa93227209bb4868faf11d8361149fcc630ff41f37d3. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:42:41Z), 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/BRLBU0400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5324f63776ccbc5ea097600bff19782d15612bf294b5746ee8670710be040407. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/BRLBU0400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd89664a94cf207443370518ef56a0ca0bc4528f69c1cf412be39c86ba243c6. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BRLBU0400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dd2b90447ebd66c5ed493f62042667a3be678fa51df651c592bf17b1649109. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:23:41Z), 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/BRLBU0400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c20a5784995a6f3d190568e595b05f40f73c7452e48e6f0b7ff2ddd418e1aeb. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:29:47Z), 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/BRLBU0400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4469255852b99ffa1a0d812d81d2798e0f35e71c3f4a8a9e1ddf8d1a9484f52. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BRLBU0400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ebfc042a490913c500692f43a633eeea67d7d8cc24298c5383c7ae0b36c74f. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRLBU0400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233afb2269e4803f756a05afaf88b4d8cb8ae30cc7aad4929f27be60ea43ca74. 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/BRLBU0400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3232f3c8295df88e1810238a1d65c4edb817e6b4b1c544c034f1fac10468ca. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRLBU1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe451bfa6211bad8f0130b0d9607aad027518615055f8eb4172204934931f47e3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BRLBU1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050ed8f8a2f29c533fa9d983c11001ade66b74a22dd69b87272ca1445fc586c3. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/BRLBU0400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f85051774a4b29fdd66d5fa12a450009f567da267c399f721db3ae4ca3d75aa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRLBU0500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0bfa6bfb543c7d7c6e9c32f5295117f76dcaf853edc39dea50867289902541. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/BRLBU0500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1255a000433f64054a05b39ec5685966accbc1f2854131972a599422963fa67. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/BRLBU0500101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296a9adf338db5d16ee33e77231089c8a651e58a5bae0734936ba6379f410456. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRLBU0500100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444f76005a3cbc9ba5fda52760a4351317533c543a06a7026c4b2b7f09b8f28b. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/BRLBU0500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb41b6e6710f767885a96dad32d1f86cc4a0b23b1a2c610c6149d1a807d5f2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRLBU0500099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeca13a729eef0d10404d78b3c55b413b91111c91669e640108ed8a9868bb336. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRLBU0400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72936823016fddff56e58a369fa00d2ee46e84e60bf9675663962ee951a7a599. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRLBU0400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f386885c86326e8c7a14424445233e20348872d7ff54dca925e0d19ffd4399. 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/BRLBU0300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80824b4cd62013a83df8cb2ddb0c31c20a3ed235c4c4605df8fd5b9f843adfa3. 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/BRLBU0400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21eda87e7b1b0c5466e1e2911034d5c7db0cbe90664c07083879f314b688c8a5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRLBU0500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2eb1d2d21d322cf88b43a57cc7918fe84505a9641c5c4aee2890667bb3a8fd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BRLBU0500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657fd2e0763d8c62f95c60e7dd290fcef20cac595f3fce4bf719f53de4b0f8dc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:19Z), 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/BRLBU0500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb61bea83b619091dd173e802f261a2f208e109a4f41dda7b9b09eea0dad364. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BRLBU0500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510abe1696876b932dd178cb94a784bddbba9aff1400ee7472c3a940e7bdaf7c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:46:56Z), 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/BRLBU0600075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea9b5cf8083971857c0f0c6f5bacea35e36363dbf4ee4550bbfa2174a87098c. 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/BRLBU0300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1544f1f089dd349ef8f003921f74bed419c8e67ab0ef75a675bf1ca7d4125826. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BRLBU0300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953a2ca2146524439e0ad9e306ea9b37a290ce8bb85dcad5961f7315a78ae9a7. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/BCP612500003.