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 0xc945ce69ac757611a18dc2bef2e377e4fc522a277beb09894f7d631735635431. 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/cb72510b-ccb3-41e0-8f3e-5887209db37c.json and https://artists.proofprofile.net/proofs/artist/cb72510b-ccb3-41e0-8f3e-5887209db37c.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 0xaf72511b55823db69ece1994328f32157c6fcd8cc54c3a9cb76a4029c3a6b2ae. 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/DEA340700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4531300e203396c6d07051c4d00b5b72a5c8c65e2cc301d85667fe3b21333a95. 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/DEA340700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe040671680a76760c73fa580fddc396a7bec0a9dd79d51742d1de1fab5d380cc. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:10:24Z), 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/DEG128600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8731ead532db707c475091814d325862e9350feb6e4b7ef5c99f85120edd0289. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/DEG128600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276b607578f5e8ada6cca161a6630dab42c202c974738ae9babf975292b5b073. 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/DEG128600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3585e55a1fde22c65bf08e4663eb5206ea690c032ac0cc6da13cc844336f7. 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/DEA340700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75168b03ea126b72ce328b147a76b44a0d9fed1d170ebeb871317b05ac465d59. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEG128700203.
Weil i immer no an Engerl glaub - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca3a4d7f547ec4fe847d759d173551ee0da9b2ef9197f07339d190534e0cc66. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEG128600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce2f3b36d3da44e997b83353482aa5415c48c6c5e68fca60b0cd481aeb5c51. 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/DEG128700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0d96e225d670f1a85c57ab692e25c6c201d29c34b944a2687f965a284e782b. 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/USNPD1219783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4b6fca10a0923088c2ef905cac46bdc69512fe70dd09dc2fd77f502570b5a8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEA340702047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4869aa4b068b7e07bfad18646ddf4024808fb64d32ab723b19e4141b43be0b. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:32:10Z), 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/DEG128700210.
Medley 2009: Endlich Sommer / I bin wieder frei / Der Fischer und der König / Du musst koa Engel sei für mi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4869aa4b068b7e07bfad18646ddf4024808fb64d32ab723b19e4141b43be0b. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:41Z), 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/DEG128700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa414f9eb146306225a80ebff5005f0242839eac80f1ec91180309d34120119. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:32:19Z), 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/DEA340700727.
I wär am liabsten mit dir ganz alloa - Single Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ad1abde5cdf3979d286958423539db8afbe0754480a2c9ca3c76b6ced3b3cc. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:52:25Z), 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/DEG128600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d3585e55a1fde22c65bf08e4663eb5206ea690c032ac0cc6da13cc844336f7. 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/DEA340700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dc50071c07075708936bcdd64e60304642cbee24eb4f891be4dce0380dcfc3. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/DEG128600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021994c742a4ebcf37b87035a26ee07343bb72ebca6ed1412efa68eadc216fe9. 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/DEA340700119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75168b03ea126b72ce328b147a76b44a0d9fed1d170ebeb871317b05ac465d59. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEG128700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276b607578f5e8ada6cca161a6630dab42c202c974738ae9babf975292b5b073. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/DEG128600104.
Doch die Zeit bleibt stehn - Remastered 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56d5eea9a91db16968d3ecfbbf77f2f5fd172cd3c4bb40127ccc08190118dd4. 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/DEA340601474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225806099d6ddb011cdc5a9710fd968051c47c02b92c413d6c0bfafeee253af8. 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/DEG128800109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca3a4d7f547ec4fe847d759d173551ee0da9b2ef9197f07339d190534e0cc66. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEG128600201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32524874360eb6be99e1dee7114c7f9c73e9c8c44abc505525b49c4a6d52116. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:15:33Z), 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/DEA340601467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3d7cf4848e316627b8ea026d038c1971fff7e37b6546c8ea1b8444d419d73a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEG128800106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c1f2d0ef317739d2b1902878554afe3449e1341806cddcbe40e30ec7b332422. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/DEG128800108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4b6fca10a0923088c2ef905cac46bdc69512fe70dd09dc2fd77f502570b5a8. 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/DEA340702047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6879cf9be0a5c7e3d85c1c1f9de11babbfa32887be5b733516279ee1de42ef6. 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/DEG129000408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ce2f3b36d3da44e997b83353482aa5415c48c6c5e68fca60b0cd481aeb5c51. 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/DEG128700206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42951ea1a5278eac0b764b7485283a2b7c6130624d1fc7ec07da70532056aec. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:36Z), 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/DEG128600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dc8d7b7e8f1e6be296c44b6b4f0af33318480d4a270e8cff0cd2862a29e303. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:59:04Z), 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/DEA341100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42129811c6c2db6629a38914310319913fca3c8f945b2c36d35cf9b9e004e5d. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:03:28Z), 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/DEA761101303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21640d3ffb933751fee2988fdfac3e6489c4022719c3b2df26bb0275f852754. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEA761101304.
Let Me Suck Your Dick (feat. JW. Knight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9bc7d35fbc273700fcf6f076af89ec545221bb0067acc09844528066d17c24. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEQS91800728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866cc75161d7da6e5e9b7853866de40c6e1d0cb487fd904f9cfd5ea66931e4ca. 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/DEZC62351563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d684d5bb30c93aa87719872c0d1ff2a743bc508a4ab8b3d852263fcf640f88. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:18:53Z), 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/DEZC62493972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7cd8d3e1ce3f407aafda83f7125a4272ad8c0230f674ac69be891a19221d26. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEW242100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7cd8d3e1ce3f407aafda83f7125a4272ad8c0230f674ac69be891a19221d26. 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/DEW242100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61a141ac52948b540963720aba90afb40993665ee64c3336fa8df8b4d21fcf. 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/DEQS91701123.
Ich feier die Zeit: Das Beste zum Jubiläum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61a141ac52948b540963720aba90afb40993665ee64c3336fa8df8b4d21fcf. 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/DEQS91701123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d910eda2789841ccd5cf4d3de3c460b67ee537707a255470cdbb2206aa5b73. 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/DEQS91900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d910eda2789841ccd5cf4d3de3c460b67ee537707a255470cdbb2206aa5b73. 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/DEQS91900344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a61a141ac52948b540963720aba90afb40993665ee64c3336fa8df8b4d21fcf. 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/DEQS91701123.