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 0xf58502e231a5f72eac9d5b720492610bd5258b3f8997ab6ace54c80b91b5c7cc. 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/fe27bfcc-9590-4e67-817d-afd9b8bf66db.json and https://artists.proofprofile.net/proofs/artist/fe27bfcc-9590-4e67-817d-afd9b8bf66db.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 0x0af4ae8d057bd0b121c81a7b895d6f8f1d4960e6caa5dc9bcebb2f00ad1a71b3. Chain 2 (Bitcoin): anchored in block 958724 (2026-07-19T11:19:01Z), 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/DER820910019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e21876958a98b42c1ddb6fd4aeb9fc75329a7bc250e1be10b7ec6adfae1a275. 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/DET371500309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c47595f3384a5ba8e6a89682cd980a2c43e05d0318f98f9ca29ff01503e2b6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DET371500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260f388432e72b8ce414114da6d672387ff0497c1fac77f78cd00361c08c64a0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DET371500305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3781c8b1f1c9507209f1e105e2691d1c3d28939627a767de96bd1eb454341518. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/DET371500307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9032bbc2d4ca727e540ba4c2ef228ea3cb7d2cca2cce013d02882f8fc643903c. 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/DET371500301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7c44e37a26472aed9f76bb65afced39f4235716bc8e7fbad1066d0620a30ca. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T10:33:49Z), 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/DET371500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e0c39e4a7d38334d5685290f822fa7018d72ba10b3d4e7bc6770e96c17719f. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DET371500316.
Er hat mich geliebt (Roger Hübner Fox Edit)
Er hat mich geliebt - Roger Hübner Fox Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9f741e5aeeb7c5baa40d87e4b9ba1a2e12cad1aaf03b64485249fdecd31792. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR59R1676869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0a701471e207cdbd243b3b5e03c328ec9eece6ea2a16e20972ccd661bbdabd. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DET371600064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6ded6b97c1d7f11f5ff67d62e7b17433b5ce2aeb849af7fd03abd1f96504ad. 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/DET371600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e4fd23a9859f1ade3dd6326c2703c7fd22697763aadf7409f79c4b90687e80. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/DET371600070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2eccc27010f5a7bc9886555aa30bbb711dcc0b01b4a6349b3e58178fb43631. 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/DET371600074.
Er liebt nur ihn - Die Mixe zum CSD 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e8e4b672e0b6c0935eae20fd766348b4e89167e6c0fb1fa232a0b248bffdb. 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/DEA761900401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fee12f59c4a4ff97e4c104347e4ed0f2ab7151a128c48be5e1150a42fb6459. 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/DEA761900417.
Doch das Weinen hab' ich längst verlernt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0901be2d095f933e80ceeee56779de698c86555cdee597db1bdf1c45e496f64. 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/DEA761900418.
Zwischen Lachen und Weinen (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c413afdc98ee7dc27650c51b6b8829d4d321c6dbfcd1cf89528c4d173224ef. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/DEA761900410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fefcfc712a1ce109f991a15229ecd3d0ae6a114477d302f6657c0a35bedfd77. 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/DEQS92000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877d64a92a83aed77757eaa1a09743cde9b3d35bd7ef24e0bf33251c82195823. 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/DEQS92100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffc60f825790d3c5e25ea584ae3a326ac5482f1b4e69f63864a3dc0e77bd377. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEQS92100409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d8ae200f00dd9a2d5d491c418dd35f4c4103e7c67045fd430ff89a82a64b41. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DEQS92100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1c04d1ebadc97799f7d32a35f94db4167a1ac4e9bcc6e7051ace66b97554a6. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/DEQS92100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51bcb3688e6fce43a0428368546daa32ea113395a9afc893575f2e7ebef538a. 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/DEQS92100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0299a1111d14163b498c2fdf44aa6407212e58dd24e673a022a83151abcceccf. 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/DEQS92100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877d64a92a83aed77757eaa1a09743cde9b3d35bd7ef24e0bf33251c82195823. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEQS92100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fb67d67bac334c31d6e3698c69b6d9f455c98d1d8552c68ff57293f471c9d5. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/DEQS92100262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fefcfc712a1ce109f991a15229ecd3d0ae6a114477d302f6657c0a35bedfd77. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/DEQS92000733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c0382d5dc8e1b52f5df2e27aebf10569c1ebb0e0fb28128da7b73598133793. 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/DELV42301101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38941e13d989ed168abe25744172a2d93089bcffbe695598be3eb23334d7e546. 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/DELV42300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38941e13d989ed168abe25744172a2d93089bcffbe695598be3eb23334d7e546. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DELV42300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbe7710d8b63ef097c2854867f27c750b11567de08b72dd59e70745ed592555. 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/DELV42301435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38428e508d886eee7cf2c5e670204b866b564960ab21a993bad0a99c02cdd32c. 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/DELV42400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9a87a4ab5d0dcf4d4401ade061f69ff3025d87a93451de5ee564da2050604c. 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/DELV42401037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9a87a4ab5d0dcf4d4401ade061f69ff3025d87a93451de5ee564da2050604c. 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/DELV42401037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f18592cee7929ec614fef629024bf06f4c361594360d0ed1a5c3b022bc17037. 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/DELV42500666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bda12f82d1abb3c4da4d1377a5425a3bbc801120f6922735c758e82f0e8a6a. 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/DELV42500671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddfdb6ad568355cfef477adddeefbc4257048cf304ba9ea0f9a62f9ffc2ae44. 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/DELV42500667.
Ich leb allein auf einer Insel (I Am A Rock)
Wie Du: Hommage an meinen Vater (Zweite Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c61480c312c09410527a347576579dc1f0e2e79c4aedd95a0ac94a1c900f73. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DEQS92201432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baf2802d876c3d6adea66e2ff175353195b04d03c990a79ca4fca279eb462e2. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/DET371600004.
Schlager für Alle - Herbst/Winter 2024/2025
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38428e508d886eee7cf2c5e670204b866b564960ab21a993bad0a99c02cdd32c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DELV42400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c4aa3e955e1c02a3fb2961d3dc745ad487aa8de872ca3050d954498031fb4d. 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/DEQS92202460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f9f6191ce5c1407b2463e81f81f5693f4f7ed795ab7a3e78b94442d11c4fbf. 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/DER820810044.