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 0x02e6b796848529ccbfd42d867418edae6d0d12c674788a4bfa5ce99aa0894304. 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/df56c5ed-7c57-41f0-b633-0f030ffc1792.json and https://artists.proofprofile.net/proofs/artist/df56c5ed-7c57-41f0-b633-0f030ffc1792.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 0xa0b77c208fa01ca1fa976d4e2f5662e2962cdbd2addd2ce776df0d4d4c50da1d. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:22:28Z), 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/USHM21882753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006d05d4bfbda29fdeac9609b54737498380ea70779a5eca784a254e3613ec6d. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USHM21882754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ea07b41ac7c798cb63b667b2e41d3d5c06023477ebe756552ec3ef4871708. 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/USHM21882759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e846d60c8f543842962ad1551f1e24ff74275b8295e75a6e19eb6e647d26ebb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/USHM21882771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2b80c94586ae345188bf523f5d2fb2ec1acb96188fb5851c8b8b5738088e11. 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/USHM21882775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee150ef074dc5375841a6fe7cc9ba8c8f686fd353a09159f4103690508f7af3. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USL4Q1817232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34899abb680c3c374702efe1b925c8d22b7474cbd2542a37ca9e35d7c2202a30. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USL4Q1817234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec72e8a86fdac22b42deba3f7231a1e0f9a0d25e85562e0cb0291ba4e9eeb0a. 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/USL4Q1817235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2574f173c18db91eb09cd694319ab3aed7c4e55470d019b8765f4d72525b42a4. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USL4Q1817236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e3133e70510d59eb029478b9bf4f751bcb63765c48aade0c837a6f6d44eef3. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USL4Q1817237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be9b7f02c9bfea42bfba609800b04131fffc8a0aeda30ecba24a673ec358879. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:24:56Z), 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/USL4Q1817238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a049f6c3b4c1a3a8aefbb20f7ec977bcbd6f92a06a37f6927f4964928ed6cc. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USL4Q1817240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7fd65b3e454eac6533cc32ec8b9f132440d4f5ea8211a2f2396e23d791bc43. 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/USL4Q1817241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4fc02c73e4e7c1de190ab53d78224c5338a2ee029f59ece2f6d299015c8525. 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/USL4Q1817242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033a5d6f70f413d15aa11a69530ee528cb35514590381a18350c8b01271cd682. 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/USL4Q1817243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40c76c05ee19d92eb82d9360c10f21685962fea5393e1c24d5c875339eae60f. 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/USL4Q1817244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2053eedf8d422cf13319284a5a82077bcee4fe1c9909f22cdb65764dbd76b952. 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/USL4Q1817245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed33982e98e0f1fe59f9279db4d1bf4ca3fbf58057d2aca2e5492372daf2a3b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:35:13Z), 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/USL4Q1817247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf182e08468e7e1809438ba136a9c8c2a3a3393dccaff61a77c1871f5cbfcd5b. 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/USL4Q1817252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea34a9961c90ee52ff96bc04d847ef386610a4a5337e53c6aa3dd87d0b03f32. 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/USL4Q1817255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a099ef1bc570d78beab8df58e4d7705d62189eca87d2f33c575a92fdecf5e9a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USHM21620115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c02b6a49bb0aea35fdf84e3ddea7c634a0f1c146825434791ef142482ed6c28. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USHM21620119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5a8d8603c95a96495925efdac4b71f1d2045843e6767236a39a1acb1585a08. 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/USHM21620124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c4d485095d4c207d25e55a96fff05cb1be6dec2040c9e55792b1a7fdca663a. 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/USHM21620125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be8e66799f285560ec99ef4d6cf67152192de536f4ccd1ab26ef46289693c49. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:49Z), 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/USHM21620126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e820e8f8495582f6a115ab273db16666e597930d7be098bc0cb89e43d24108. 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/USHM21620136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0029bd3d52f4594b0566b1e83d909b3d6388901973a014a87cf5bb0f662b9b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:14:12Z), 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/NLPU11900007.
't Is tijd om weer naar school te gaan (Zinglish)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97841e9bc2909fcef18a421198a99964617393b30f9e8b0d425880aaf06b48c4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:07:01Z), 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/NLPU11900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf937eaf078b8617d2a5d503b9ec057174d1e1ad0b628a5ef3b684da2a91e718. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:34:11Z), 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/NLPU11900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7b982238ed607fbf977179e124162b73862aa7622a264986a67e5cd56ca775. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NLPU11900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f9cddc2f85520309432f1defae891e0f8d3ab4a181db0adb736654fcd05c21. 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/NLPU11900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8793b7841197cef8e612bf8a94787b8d005a2f47c64d981c2452b89529d68f. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/NLPU12000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047741f80046c81445a09f3cda4edc4e5a7af0082a6e99c8df02bc27afbd9c79. 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/NLPU12000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5f8f5c08369d7629923f99255b3f92c4bf6f91292e890dbcc712070e0ccbc0. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:04:32Z), 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/NLPU12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a9cc6a3fdc57204eeb18147cdb959ed68fbc36e368b41840f7b35bd0c39aad. 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/NLPU12300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fb9177ff30ca869fdd7581dabc624e9c663faab8ec05031435c48593ba9e71. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/NLPU12300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fe6a2b0824ff6cc4470307bdc901343fe5abe0623bd79b993fd88864afbbd9. 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/NLPU12400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9595609982915d837887d53656a21da16e01c6b6243dbe5a240b9a024530cc6. 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/NLPU12500001.
Ridder Sjaak en zijn draak - Instrumentaal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbfbb6978b4c8533d63cdf257e1a8c63082def8ccfe38b611506ef3379c3938. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:04:37Z), 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/NLPU12500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695802c4a5dab9d3ea0c06cdbe90bb4897761d8adaafe9f78ed4bb72294fb11. 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/NLPU12500004.
Leve de zonsondergang! (Instrumentaal) - Oranje
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f1733a7689487d201f436e163bd4003b9b67f689063325d87784992361eb17. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLPU12500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c21182b8e7ff3c6ebfc735e1d3c06bb6eb200c9fdc5e56d0fdd21c60e05986. 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/NLPU12500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4124c600aa7128abb7294172b2cc5eea0c325342971ec675242f84beb95fd1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/NLPU12500034.