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 0x3fbc3c2f330f0d77701a3193254efa3dc054ac940b40d98f85e2da821b074322. 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/6c2f3ff5-ffc8-4b27-bacf-7776ee494e4d.json and https://artists.proofprofile.net/proofs/artist/6c2f3ff5-ffc8-4b27-bacf-7776ee494e4d.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 0x682770d4f418fc3787a5eb28b2550db6a0359b8993ecf121773af906bd1825c8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PYC842421401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df6ff71133f350f95d6b75a7ac519d3a4a620f1506464a17f5cbd70c5529164. 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/UKXN22541518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2bdce7ea55c9c8e1e7729a514c1d5f41dcbbfae198724670cf8e3397525b3a. 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/UKXN22542166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4126e2860c602366100414ee17144db3bac0e39dc4883da9cab2dd73e894b655. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PYC842500768.
El Poder De Las 4 Ruedas (With Aldair Productions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c45b658d318f50db891bb25129237ca1cdf5f99f383080561032cd72e2654d. 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/PYC842503262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b3fd1ea34013a1ee968993f164ef7ce377032dad7483d29a70cd966a539f8c. 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/GBLFP2578391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58666d8be9f8f72991f2259e001894d5828e6000fbc272b7ce1686133ea82205. 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/PYC842503618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c6c322dd62c910555c4e188f24c0d405abfb73791217271a2ce843c2b34baf. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:06:18Z), 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/GBMA22590916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff1270fc53e83fc6f5007e626f6ef484ccd58369fa4cf6ce285af9e3e7ffe1a. 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/GX53U2570609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c3b30e46b01d411efc322659f0af654aaf034314e420f7a6c4d02ee7dcb53d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZYFZ2507020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6d5396d26b69eff33701fea83a77fdf3184a40c5a274ff6fe8ecb44f652d1f. 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/QZN882438591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dbfa4b75754837dfa01626c130ef1f81c78e1bdddbc650ff1123f40ab20d64. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZN882542489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb1636c2c59e42a60db10a8c1904f71fc20b6b785ab62b6f757ba78d434004c. 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/QZN882542478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3baf279edd777edc99bab7aa0acdd506db64d94bf0c4e8c00778279b1344249. 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/MXF152500369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625db17ac79bc60f014103600914638f89c553b2bbaa91684c1cda8a144e668d. 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/QZN882586550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d573ba8a5779f2901998adcb74196e3910ddb8761879d83fda9a74097b8635. 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/QZN882562087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136069b69064bc8b314dc5c5f59fa43f0b991ef6d6096dd3d2ed7322f66db18b. 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/QZN882513815.