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 0xec6e3c61471d0ef750f3f3845c7ee0cb39ca5607fc37c4ff37187131fd820407. 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/41ea90b4-1274-47c5-a691-470d8e50ac33.json and https://artists.proofprofile.net/proofs/artist/41ea90b4-1274-47c5-a691-470d8e50ac33.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 0x947dd62ec71077788aad3cb49753eda5699e99b0ba7a0504aa29d513f188495b. 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/BX4IU2421694.
Aquecimento as Mina Pira - Vem Come Minha Xot4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc06565d6e2b2c6bee7d8c47e3a7ed2474743443c52905ff28afeda2a06cf5e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BK2242401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f73e287150b8aeb9f67175b2c88c33d33f0689b2a2daefec3e5676f8ee580. 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/BC3PG2400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324b55c0a37382e0df3b96427110fc34ac25bf22e620bc6d73e2a279197d8287. 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/BC3PG2400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd6d20b23688866bdd908d1bcb04e5c41458dace268e0c0eff5039118a8a5a8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BC3PG2400280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d27090f335b52e05678f11a21dbcf94c6280c97de5acd53350378f9baa043ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BC3PG2400283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cc062e11fbcc7210fbafe673c9592094d461821baeae1bde2ba5942c406706. 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/BC3PG2400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec53d41e9e178a76bbba5e85a48f8a3ccd6ead8f1692052247643a158670a0f2. 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/QZGLM2445303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da1b41cc649c60ef8a885320f4ce06ad62c4784913ce875e55eb0cba6447e48. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BC3PG2400281.
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 0xc85fc19f45502a4b9ab8eddf8857a1d43501aa14a5cfd62214773c6f76e096cc. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BC3PG2400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1706fcf28f120c7b694baa5b1e7d172866d6086b86dd84b101b78be1b126ff7. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/BK33P2500005.
Aprenda a Respeitar o Homem Mal - Cala Boca e Me Da
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09117838c4b769178b69e94f198e24f1b2ead120fcc84be963e3cd464bd38cb3. 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/QZTVM2482791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x565b7bd6075acb93bf607dc19e700c256fe20f721a0224b0fdc5005d5ee99621. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTVM2482792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25f50470d472aca57f5382e59917f0ab360803b3d5cc8a3d765c84dc0a0ade1. 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/USANG2469899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6008e75f677a0912859911d8eb5cdc808cf1151a08824065355c7c42b09845. 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/QZTVM2476394.
Latão Terrorista - Confundi Com Seu Oitão
Os Menor São Marolento (Só Quero Te Iludir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf25ab3feddd483ed918f43e5ae3c3b62756f03cc32739405e4ebc03b1fdf3a. 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/QZTVM2424385.
Romano Ansietico - Bate na Bunda e Me Chama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115487008a7fe2b66b4fd7accca194b731cbf5f6b4c59985f037376e3ec2bcb3. 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/QZNJZ2465044.
Pesadelo Deles - Brisa na Mente P4U na Bct
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19db2237b59bfd1b1b59d793f497f12298df34db4dc7a5e8c1d488e0b8b485da. 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/QZNJZ2455647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7966f70f1af53520088a1657b880acf354fa87f473fe97df8c2f7db6a6407e71. 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/QZNJZ2437027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842b8e75a4354d427db71784458c93b630fc2d2a28cd5f39710903640718792f. 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/QZNJY2449864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8517ceb4d03e7f1a787f8c90f3d619b5c8222f2463088b16aa2ac24ed413a4a. 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/BK2242401624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d06ad9d26d7e76b031dabfbbd93a360ef70074b1b91ac44d994ec76fb33b59. 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/QZNJX2494675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba84515918a6e9f0f56d90a1db32ab031d03e1a5c2896091ef09d56090acb09. 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/BCIH82201397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015006042921a7616d004b7c843746c8f10f6b7a8321349b8cb9f7521657308a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCIH82302884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573526e22b2c93dbfbd980a52fb5b2d6918752f9c13a247ebd73273d0b73057a. 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/BX4IU2355408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f21d5c3d2ead255312e61dcf283cae72c174132bfdccfa0ca4eafb4f49327b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA112561824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940d5d84c91e79ceb9f473b3544588c208003e17c6e598d068b866a28c9861c8. 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/BCIH82300906.