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 0x5d11cda555083d3125763c246f0dc2bbad61155604e063fe2bd0596c0c589ebe. 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/cf42f2f8-194c-40e6-bf67-cc7485ec303c.json and https://artists.proofprofile.net/proofs/artist/cf42f2f8-194c-40e6-bf67-cc7485ec303c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Paisagens Perdidas - 15 Grandes Clássicos da Poesia Gaúcha
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 0x45bcf659ddc1b3c73b4ca420d48c953499480d8bc817930aca9996d598572976. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:49:11Z), 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/BRACT0800844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7619df19d39320a53e8fe25495f6252389f45310b14858b704c17b1bac801a42. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:43:41Z), 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/BRACT0800845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353dce5f584830971bb6ccd2a03e2395fc120c214f2a2ec4257cade638317f11. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/BRACT0800846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384d7f9ba158a440db7957892377375e5bd210b2e96ff736d9ca3b697ef9191. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:53:21Z), 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/BRACT0800847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f8829972961ee5ce508f62205875bf3a4edb7390ccba4e86a17873db2bac44. 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/BRACT0800848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ccd470fd4c79cbbbb6663b6940d7d7f7f5044d91213bafe94e8391892f0168. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/BRACT0800850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce656bb595ca919df7935a760d2825ae56bbf78d86765affb6b28e24a4f965f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRACT0800851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced6913a0bd10012c5d20c7a1db2f71c1da4938eb98273ed791e56d6bcdcf975. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRACT0800852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea7afa1eb9d377c083f013a47271d70ad616dd9ffa2c1228df34f7f4ce2375d. 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/BRACT0800853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5102308efc2ee4c369187f2ed8e8f8d143bd3f139bae309b8e84221ea0fa92. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:42:36Z), 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/BRACT0800854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb3f3cc0c90a6f4549214aec9d5e8741c65c7f34bbca94578a8a9d8ff01b628. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:03:59Z), 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/BRACT0800855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b032b86f43eecb159c484da0266bec36f491cdb07057a17f11f96e1aeca01be. 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/BRUSA0500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975f527ead060e25ddbd23ed3e8553ca7960e4d6eca6adc296b8636ffd42fda0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:22:06Z), 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/BRUSA0500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69664fad332b6b972ef83355d5439f58a262a57c2277c57d29cbc08e88ee7869. 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/BRUSA0500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1089a4c561e860e60be9fa6cffe6287d33fe3c84d7ef4628f2ee6e3c5b104. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/BRUSA0500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8660fe020caaf6a0897df90dfcbb0599fff8c63c1c41604f36216d29c7262c1d. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:35:29Z), 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/BRUSA0500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20105617a4e8b7e750072818450216581deb7e460bbedc36afffc9a0cfcac081. 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/BRUSA0500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d64b6233b05f36050b17d515b4e0fafadadb81d9936a6d0967c11a61ed0577. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/BRUSA0500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16ee14e49ba8aebdf1cbf3bbd5a7207324657c98df3c1b616e9a359a9dff641. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/BRUSA0500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9200e0ef58dd288ff9205788f86e698c2e5dd1dbed124f650a3482e82615fe. 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/BRUSA0500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae620ca64cd4ec740a21901fe2aa7de67f70a922c273371f6aa931b36f772bd. 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/BRUSA0500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715043982ae8df3634f3d400cf64e4650439bed5c18538a9bb18b19b01f11599. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/BRUSA0500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe066e2e503e5859fecf2b9cce0b0b561b315b0958279c5423a7f2d99f71ead31. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:47:50Z), 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/BRUSA0301166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6015816870b01233d50811fde085bd74830d5006a25690195d90a069b84d54c1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/BRUSA1100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb98d3e4daf6f5eeb640a7d39ee0622128c8c3099e960e14469d047602472be23. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/BRUSA0301174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da0cca320d504e1f863c02fb2c7efcc48bbb8e5db6e7a80a3dcbc28cc1ffb52. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:07:22Z), 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/BRUSA1700093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c44c470a6d18705c91fa3408ee5431c427da936d9433b1041eabbbc4c914a46. 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/BRACT1606454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc526b23bf207979e159f8dc6b863689b4b4323be338ee06b1471bc9849c2b7. 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/BRACT1606842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44697afb7a9796cb1aabaea98260106c3598f035089a845d258b2f52be0224b1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRACT1606812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d1bb3005c7982562149cd477e39302a1a1361cf0e6bce71e7356b5f1ab2147. 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/BRUSA1701959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635644571cf0925d288ded89aabe66a83a2bb16d03b93d8c695d1d0a97fd4b89. 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/BRUSA0500055.
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