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 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 0x84119a83272eec3c6f8cedc7a77c6272a4c577345fb0371d4b5fb78f77fb1740. 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/f3ae90bd-9115-4a2e-94b4-5dde00de7874.json and https://artists.proofprofile.net/proofs/artist/f3ae90bd-9115-4a2e-94b4-5dde00de7874.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 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 0x20482aee554a5fef1b9bcb2e21fbc0283926890aaaf139c39147424316eed0a4. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:53:57Z), 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/GX3Q92375402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7170c4272800ec9cc46386d20a4a07a188dbd885bb496e8cb9a658406d89fd. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GX3Q92375403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30cd26c8e509e745e9f81796913d6088c6fc59b344bae30fbfc7d06d3856903. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/TCAFE2034826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15943ea693bc6ccf1644072cc5ea1c94c11edbff8af848a226f9d6dd4354af23. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/SE6TI2191629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0f447b45845cde4260793d4b3ca129ef39c9953754dc92d766b853a0312a0c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/GX3Q92434665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7944db6da65cbcf927ad6795f0d2ed67b4f9d45666b815ee78f3f32c3503f9a8. 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/GX3Q92434666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3fc333f930a95ff9991be39c40e16d805bd7be28f741a879a75eb77e072610. 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/GX3Q92434667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88240e2e6e8eb4b046cb0d95faa35875887bf9db1de9fdbbf761a682fa8babe. 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/GX3Q92434669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aac15b47bd98fb2967db3eb0405023d16f9042621138044e26c7b48103aeccf. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZJG52405605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5df48e4d101d653711a876819b89e0b08d92523d2b1f61838523c8cea080a06. 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/UKXN22493536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23afcb3d7ab260c0c2f1e3d528102c1b1fc7819820bdfa71a2a8c86fe0b625d1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/GBMA22401215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9468e6bd6c596ce81987146390a36039ad653fd05eb0e8a39fd6399c4cf09e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:37Z), 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/QZK6L2367222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23dca753cf362d248f2c13b322579b3f5dc31d12a21113fd8490095951e614f. 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/GBMA22486299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1f11b631ad9118f209d5bae64e3af06a7227c2f399206bd89dc6c975a27ed9. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:42:24Z), 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/GBMA22490619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e07eaff0038c042052224bd92464fd58554294840d1038c84a8d524cde8f8c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZGLM2417298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1481c766e5cfaaf4596f45f76929214900ecaf33e2f21463a4337f2b7939f3c2. Chain 2 (Bitcoin): anchored in block 957529 (2026-07-11T06:30:13Z), 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/GBMA22397099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475671ea17ca5a7bb36eb8e502b5a656e13c51ebc8d23e82dbd53d1c664e1daa. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:24Z), 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/GX53U2321116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d88d239683db9f3e1ad4d10d76d4c4b4730e806b68b3a91aca58f4ec0f0fd6. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/GX53U2337050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37c6f07d53cababdae44c77b33bbb057c6100af402e290e1661f2c82e8c290c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GX53U2341791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef57f12063b9f7ae24cb7e7bce56994469b4706fe48ec2f199a6b144bb81d89. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:39:39Z), 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/GX53U2384771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3746d4820b57b24eb66edf33fe8bb6a60e4ae2a387934119fa288fe373148ae1. 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/GX53U2417803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d38ab267abf0510ace584a52fba41d8c6fabc3bdff88283ea1ac443214b231. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/GX53U2498259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502d373c9ee431006a369e61451a15b71dc4a6149d4889db54320eedaa317834. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GXF9Q2407582.
El Loro Fuerzas Especiales T.L.K, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9492f0ca2622a4c2f2e3165e566e87f73acc65cf17f5b430f35a973aedc8eef. 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/GXF9Q2504827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b32b44180aebde92ad655281a4e1fd5a91601d8757301513866efd4b1b6ad8d. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/GXF9Q2529768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2ed4eeac1ae3584571cd45544ee2b0e10b72fbf9c628efccfd6e7e09bd9c14. 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/GXF9Q2556199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399d160e4e2d43b934c39feb844bdd81349648c2d87b5e6f16b5885a5df7e787. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GXF9Q2566580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813753075b1fa2f72ac46498d69cc46503612ed93a4d80dcf9e42b8cbd56b1f5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX3Q92557296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf025a96edaee8521adcb81d791472b15cd9dbd1db9f3eae40268ed18826fb7ad. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:28Z), 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/GX3Q92563355.
El Zeus Fuerzas Especiales Colombianas TLK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2abdfdc4b89b1eef2c434ab9f7c28f45d7d2472ba30d6ecbb92830cdc1eb66c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GXH2J2517419.