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 0xa07aadcc916a501d8f7bd4329de66cca8158b537be1f6eab3f45fd84c6b4b39b. 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/355f6778-c562-4765-8ee1-50fa20a26e80.json and https://artists.proofprofile.net/proofs/artist/355f6778-c562-4765-8ee1-50fa20a26e80.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 0xf103dcb14fa6da20717072aeafeb9cf54c555821f874a219ddf262b7821afbf0. 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/FRIGW0700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86f333ec0d3c912db73cb1c93e107f277c83fca27a23aa9cd3150f9ce90bec6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRIGW0800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ebd70b74d7c9d0c47ae8bc3d707da309d2c9d168ed0402b3a2f657c30a5e63. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FRIGW0800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0926ab31af7fa99041db8768fb75bc897f26eff77ac370dfc17af2dcca749b41. 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/FRIGW0900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8d309828f9f4599f91e30846227ba7109e16b58c4a0ac84010fe0a3b4da790. 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/FRIGW1100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193d8ebdc5bfe1c680e32ed557156c89da3938b2a2034006e193bfe69e32c5a0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/FRIGW1100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb562fea6e8d01ea41ec1c1a7cee743f691c976f7ba3675adfce63568e174cbf7. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/FRUM71600702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0199fb181627df701ff63c90fcd66219dac37dba605692f7e6cc63dc4f0c65. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRUM71600706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecaa8d50d8ed1083f42a2abf87d1cc382b4427647937781b9a8dfe9e3fd70ea. 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/FRUM71600707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1deaba7711df268b8fdd13c87c8118a062620dda1ce3a96f4a098d472b9201f. 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/FRUM71600709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50650e9cb2ee2dcd34d71f327e95c86a99055306d586464a70ce289681ac1111. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRUM71600653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a29d108486f666f23b6d71c55a48a5bb0369a2d0a3c7634953b7025ca0dda8b. 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/FRUM71600652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2650cd68571a4369c6bc4cbd44de2660e377e36b7e8b6f8bad9c2d9980905fe. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:51:04Z), 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/FRUM71600844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f940cf073695ff5f8f927ee1e30fc14b8fb98cd7284e5e99b911c453200f3b. 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/QZ8GX1700162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9614da9bb900637cd16e3abf49a73110313cd100911054e7fe7b0b7019dd93ec. 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/FRUM71900663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273496810e4800aa661a98d38e410283af4c771bbd30e1db062344b8099afd7c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRUM71900851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814eb8842d220b3c48d807fd795f9d44348260964741cf93acaf4cf7a45002ac. 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/FRUV71900326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686316026217dd2d6368f98c1486524d1cb593d9c435862bdf1455d69bdfcc7a. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:31:26Z), 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/FRUM71900886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e7eb19ade72f58d80dff6eb26533bc15ab643576ad322837ed40f26a2a3754. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRUM71900891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e144190566e90de631666c4b20bf0be84e031b5b8239893bfb43a875a8719. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRUM71900894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9614da9bb900637cd16e3abf49a73110313cd100911054e7fe7b0b7019dd93ec. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRUM71900663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ce774dc9e32ec31f897f743530ba5f715acbf55888a18c1f8db814e0bdd768. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:43:57Z), 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/FRUM71900717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17315c20a4e3b7ff7f346336285c0b21248ee0be3e4ca9740e40a1e6a332684c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRUM71900885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686316026217dd2d6368f98c1486524d1cb593d9c435862bdf1455d69bdfcc7a. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:35:46Z), 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/FRUM71900886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f9583511c391ee3d3a7966b841efaeb789d1b1f1460be46407077c1117ae1b. 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/FRUM71900887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc651d38f06f741329f892b396d4f45798f4ea0212b1efbe37fb08ad8b210b334. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:02:06Z), 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/FRUM71900888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9403b3c9503b8cf8a98bbbd57c36095022a3b470d2040b50eb307f50100bc060. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:32:16Z), 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/FRUM71900889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3785e95e9d520a8a5b27cc6431960c78ae09ca4a3427230d6fa807f23af7af85. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:47:07Z), 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/FRUM71900890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf619ae47fae7cfa970a94fa83d8dd252c606a4142a243d6ca0636c52d4c35b. 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/FRUM71900893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37c1636fce8c566afed6752284401c35c024c8324d4e0f9bb1cb7bedef214e6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/FRUM71901978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37c1636fce8c566afed6752284401c35c024c8324d4e0f9bb1cb7bedef214e6. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:35:26Z), 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/FRUM71901978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0b8fbefa4ee440792500cacb58016f82b2e0bb6107d1348547303e80b111b0. 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/FRE6U2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8fd4afcdc21aa44cde4e9354a44c2ac2306d88a94cccf135829c8a09c97b83. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRE6U2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c078269046f7eebdf22b883727c6db1b40be9f5b4407cf4b85134dfd530ccb. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FRE6U2400290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2331953ee9e4857abdc3b42f738eae2e4246a4a5336c44339b92f27abaace3c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:50Z), 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/FRE6U2400340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c078269046f7eebdf22b883727c6db1b40be9f5b4407cf4b85134dfd530ccb. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:45Z), 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/FRE6U2400290.
City Lounge - The Deep Session (The Finest Music Selection: Deep House, Trip Hop, Downtempo, Cool Tempo, Lounge, Electro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a89ee5696e1b2e31e2660a3ad41b4d84385210734b731759316b5eacaf2957. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/FR3Z81105209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4468f0c52784538d7c4244c1c6a47ef169a66964cb5ba8c8228f6c1b2beb1815. 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/FR6F31236100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7155326f3645e9b3ce29bf277bebd71379f8d43f0e9c0de195e08263e7ab979a. 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/FR6F31180970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0603d3597779c9e84a9a598deebe80c86462daf2902d99a2f155013bdc71c5c5. 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/FR13Z1000057.
Bands Under the Radar, Vol. 3: A Very Indie Xmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6ffc803f836c30840870113c6b5e62843c84fd99bdfbc1c8e383d783f230cf. 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/TCAAT1057934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb768af35d4e167196974c8aad698e9d29bda92c36254e7b6ad0d4a49751575c0. 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/TCAHC2359229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb768af35d4e167196974c8aad698e9d29bda92c36254e7b6ad0d4a49751575c0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAHC2359229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6de06ad3bd32868fa3d4afbb0eeda072ce534ea1fc663fe043ba809ec7b3562. 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/FRIGW1100300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cc270fb537aeaaf69f63fe44315a87195eb816a5ddab0bb3a1e2b73e1a0b1f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/SEYOT1000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20a379803de1b13b79f0229f9577384bc7b921fcc49290c711900926cbb6eff. 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/FR6F31318300.
Acoustic Chill: Relax Yourself with a Peaceful Acoustic Selection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0926ab31af7fa99041db8768fb75bc897f26eff77ac370dfc17af2dcca749b41. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRIGW0900170.
City Lounge Volume 9 (Paris / London / New York / Berlin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199e562aa4129f953c00c45382785ac6d013210d7545fed57b5d2af5874eeb1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR6F31216120.
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