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 0xec7004bb74f65ab14a340b9e4db12cf30ea02121e5057bf47e7d9de41c69739b. 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/6098dc1c-f4f9-47da-97a2-6b4ab9e295b3.json and https://artists.proofprofile.net/proofs/artist/6098dc1c-f4f9-47da-97a2-6b4ab9e295b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
3 Palavrinhas Baby - Ruído Verde, Vol. 1
3 Palavrinhas Baby - Ruído Branco, Vol. 2
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 0xccbe5eac7eed47cfe12939eccf8daa2e4435c56508006194d9d4a4adf06c9116. 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/BXT622300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf88fd35325ec49c92204db71ea4cd77a67e63221ba722e3880809e65ff9e72. 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/BXT622300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc2dd797cdae2254e6c3d053b493ad80240c62c1235ad3ce2fae0b29596fb5a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:32:04Z), 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/BXT622400268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x460bff6b9174d542795426d50822d7593b703daa58d6c36a26d53c516c934d29. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXT622400269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563f4a1583c4740135cd2aa7ffd2b61123832cd0e3d69d947cb849ecc0eade27. 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/BXT622400270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e04768638571acdaf00df22c1c272edc58b02f1d8c6d5552b57d702dd6a3787. 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/BXT622400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd983810a15919b2fbb0c5eaca19a0c669d74b69f6243f8e19ce473d13a369b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXT622400272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330ddb533514580fc2b1715c003b2a5b62a0f7f468171319e4aae68b0f02668f. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/BXT622400273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730fc632b7e2edfb50157f7360cf74db4518b5a1bf814bb8012c0751492d2df6. 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/BXT622400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148ea5cd9a8d2eba65061ec802c80696a83f0e270dcdae0591b5cd94e3c74653. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BXT622400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da283ca5812350abafe08bd9d287922d024fcf9d3b2fe561f88f231e1f0c991. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:24:51Z), 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/BXT622400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f890f15f7ce80f4d2e30bb16af1ea80a931f896db52ebd67187801d77f74775. 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/BXT622400277.
30 Minutos de Ruído Azul | Sons do Fundo do Mar para Bebês
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1147525a2aabe76ef9157d63995b31ece76a503f1657a3ac1325fcf1599201. 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/BXT622400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eb83a330577779b628726dccd4b7f5cbbcd8f6845ebb3c2a748b0a286eb9d1. 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/BXT622400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918352dfcf8f4cfa81f13e34f603d3e2f9194030078763dcd19eaf8e088e350c. 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/BXT622400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b87f0c73dfa48cc33931cb031b7ebb14d2fb15b334969a8a56b8620c38df4e7. 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/BXT622400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494a46f825880bf8c9059bf8137c2249747fad718dfd5ab525a9cf44d0688ce7. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/BXT622400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222cc970f89e6c61668747c3bc6ce743bf3e2c5c4677d29eb1d73ba8eaa45e52. 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/BXT622400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e130b273038801f20051dac3318c4932185a45c84926144dc13b4a805e7a2a1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:39:44Z), 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/BXT622400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe709327fbee28481aa7a4d80df5f5589eaca1725195a562963b9e40dd5c0a38c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:04:34Z), 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/BXT622400285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1b92155be26692218454585017854e3e8eee87299ddd92c09ebe9f65b45b9a. 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/BXT622400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffab02740b03a3151b55a76a196371120be036fced0d61218f04466168bdd03. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:47:02Z), 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/BXT622400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b6255ab6113e00c8ff14de4665f7f240be343ff35944a139b57ec969c58b396. 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/BXT622400288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261ce5e8cf867128cadcfd4594ca30f203fa338425bdb56ca7d9b8a7fca7c81a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXT622400292.
3 Palavrinhas Baby - Ruído Marrom, Vol.1