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 0xdd70050d0e3e1c4b2da86baa8ad4f733da4897736d552a8fcd3f08c7e9055265. 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/87615a88-e2ec-4164-81ff-72c0e0c3248f.json and https://artists.proofprofile.net/proofs/artist/87615a88-e2ec-4164-81ff-72c0e0c3248f.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 0xc84c89bbb6db67b70c6d18e902c22859e7eb5396c8421668938bc48603cdace7. 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/QZHNB2415091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0312f1f960a39e2f54886edca9e379e5fa48060767dfeb0db517b6a98743ced7. 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/QZRP42260851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff01b22f77abe8b155588bd7ed20ecfd3cbd422909e0c35a730218acfacd673d. 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/QZFZ72491251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71553aa790eb22d1f3e61cc87ce5f69492b114b37c0aeb449d2de9752951e084. 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/QZDA52262208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad956f8a41f10f6e422c6424e95f6b6f95a7a16c1459dd5d98447b4901dd6a7. 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/QZHNB2415092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26054ca62097f913b4de7c8d1995cfeadc13aa46a0f9886b36fd1197054b45e. 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/QZES82219928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1d287a2e96a3e674b885759a31ed6e2af828bde4c527b1fa8b4e780fd34623. 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/QZFYZ2000829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0699470c1a998b999dac83a061937bf9b24cc922656e555b135c33ede4586960. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHNB2415093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3c12df4fabf1c6e8ac57a498ef77ec9a86d338bc6a7efe8c6610772e14e0dd. 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/GBUM71703550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f79cd4c96c6082a8dfd3c48057d5f3244321dd6f8aa7fc6f167fd41a4bac962. 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/GBUM71703551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ae913c62d931435c1984a2b9c2b339b5c728c0e7987dca468a5bcef51dd0cd. 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/GBUM71703552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813e89b7b532c8c5f0cd6b1969db48d8a98d62e8355bd56da5221faa21535cdb. 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/GBUM71703553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eade2ffa8756037c5470181e2d3f938b22122769f8f219bc1737fd4a397517. 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/GBUM71703554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f9a6904500cb105e5f0c89f266cb792ca65cef57d98b74af0ef8f741e3f10f. 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/GBUM71703555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d07f043493f7e174d01a8523830e444480b7bf8d9b2f05cce68a8b518f206f7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBUM71703556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0783bddb8d8cdc64b1e6c7ff8d05b6ab516801d74ad68599861c6d833d9673f7. 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/GBUM71703557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523bbc2aef88166b2ae9266cac8cc88f034f1edebaea70e5ebe8a660a05e8c55. 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/GBUM71703558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac722fdf00926ac1c724ec3d2cdc5287ac8b9d1dafa430ca993a04bddf9c8299. 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/GBUM71703559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5643045542c46a897cfb2eea69e1c7d0be91196b6f6f265f9e4d38c5842c21. 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/GBUM71703560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0312f1f960a39e2f54886edca9e379e5fa48060767dfeb0db517b6a98743ced7. 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/QZRP42260851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26054ca62097f913b4de7c8d1995cfeadc13aa46a0f9886b36fd1197054b45e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZES82219928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71553aa790eb22d1f3e61cc87ce5f69492b114b37c0aeb449d2de9752951e084. 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/QZDA52262208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f62bceb442f710073ea5c85b9a6ae89ef7faae2b20bfeaf8e0cc9060c95a9af. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZK6H2088724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1d287a2e96a3e674b885759a31ed6e2af828bde4c527b1fa8b4e780fd34623. 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/QZFYZ2000829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0627a6b080e1279f85f394e340d7e4bec56bbef7e61b7bbebb58270800c28c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUM71514539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2955a9b0e6c4996842735c0ba81960a660c9dc35c71d42742f1463b252c3f0a0. 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/GBUM71706496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f54c72ede64ccd5c8bc8be871062a89d41ba5f69483abd04dcc99182594888. 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/USUM71507643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23d11cec6a62fa175dee56388cc7ac1b74341cbf4dbe3ccfb7c25c872772f46. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US5261722778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0716c37e97ebccd33d118d34819e8fc0d18daba6ca3e02cdfe57d436f1590dc1. 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/GBUM71703917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4189bb336769a9a6302a6b3ba9050ea0c634ccf8ef3e1a78b51ddecd47240529. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USRZR1700334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3f530bc0fd96e71cf2510864a890b9de518615d859d3c221cf41af0b224928. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKNE11600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cb84e9e66f0b758cc772dfe475398e45dbf069d427b333e0d179bd3e4d53f0. 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/GBUM71605819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582e8d4bdb47e63a039d901eee8f70d449c115c8d62fb14099b6d23274491b1d. 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/USC4R1601984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288cd2bd2ac614c0431552879aa73f2d3fed2e0b0d9413aff633cfe57592cd3c. 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/US5261622473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc424e9442613bab64fda33c6acd883ee39654f2dc589812bbb1641eb353f3bd2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBUM71701589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e0007d532e6ecf05f3733e532bceea572bafed78095bb3cc8d02015d89fada. 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/USHR11738189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e93c60ccc74c53785629e1c9d8bffccf113c12104e80bb08804149d2c9e134e. 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/USUG11701926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eade2ffa8756037c5470181e2d3f938b22122769f8f219bc1737fd4a397517. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBUM71703554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c660c9f73293d2e337d27a0086cd09169285cd460dc07780d80631986bf8797. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBUM71702451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd60f79c34a7ad478a3802d6fe01e2c64bc593799a4fee998237e0549edac32. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBUM71704247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5b79d9d80ba1da0f587cd6ab31ca154b7cbc729c98058db57c731c80051b3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUM71709983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d8c35df57244b7c6513202af880514ae59a03fc966f3ab5e35da007a8cd64b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBUM71703309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d2c5f4fe9ab95476ef8b50bcf52e3f15da7d285357c264724f3e73e7dc253b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBUM71705433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d82b641b76deff99ff374de092446b5eb8e9f5f57c9bae7468dc4ed2988a05e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FIUM71600745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc884f09374794bd6a9e65d8d77eb29b99c11f83bc0e2a78f1c8b41facdecaf. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBUM71605616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c8d2d34255be3d918c8c2e91bedc911a841651f0936833f271d924c7f4d3b4. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USC4R1706033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f4baf7ebb26313a07d9abaa7b06b9c1de4933477df167f72a2fa639bf47436. 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/USC4R1702227.