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 0xb8a114f41b99714a87bd0388f9ac3f9dd22c60ce3d65d813abe2d4ccc2502a2e. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4130d7f-4766-4300-adb7-7a9135087bbd.json and https://artists.proofprofile.net/proofs/artist/f4130d7f-4766-4300-adb7-7a9135087bbd.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 0x88fd471fbb8fd8737cc0e6c9b34c4ddcd8240d08824375e4314d941c2b5222d0. 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/QZQAY2454772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1156f5ffa14bd4de006b3616c048817372a46e38647df8b7f1a588cf634ca030. 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/QZQAY2408609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8284b145d43937caabab1d5e0ac55251f7deee379bf2bf38eba1e9bb974bb90a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZSYP2435608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88fd471fbb8fd8737cc0e6c9b34c4ddcd8240d08824375e4314d941c2b5222d0. 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/QZQAY2454772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5bc75e22e38b97631211809264063fe92f5dac6e0cd6964fd8cd20b87a92cde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2467064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3978f0d97184823444d8b1a9bdf3290b7e55c1ab8ccd6b0d96239604b2c71ce. 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/QZQAY2478497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4388eefd1699a995115ce21f9479146000712821ccea36e2a67f7241112caf60. 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/QZQAY2455768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54faae7e1ac45e4d23cfa5b3773caf794c4e56e485d728d6c6e17481bf12ee0. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZQAY2466128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c21d8c9eea690213fc63f2928b750aee63ab5338ce938bf1fbe646741218234. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZQAY2438699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd35524b579458fd915c791b5966e4b62024affb524f0f12acd1835cff22e1b. 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/QZQAY2499332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1100a80557d38f0a3baa4797a018e85fc11a5ac41679403a3f3aa1ec7af033e3. 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/QZQAY2452268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa3c82e64f40f68a2f4085d878a3f4b8204e7c16e6e285a9f5382599d6eb993. 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/QM3DF2214711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2966b38d53b02b072bc20e6eb99f21a25e406ab23ab46e0e89976f3dcd4a7299. 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/QZWDD2296375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1347987460cf1cf92f722d8b6077bee46c5e3cadb8b96e0a403751242fa9055. 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/QZFZ62184833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18718413abfd4bd34269271de5e2a9dd37ebb865f30f929b0f9b7b1d2c4071d. 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/QZTV32449299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39fae68a560853f2d82c22b5de0fc8fbf0181b2b63190252dfa39c7c5fadfd2. 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/QZZ8A2365423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989ea119b51f153f86466226e7d969e36f48e377cff6a64fe28d4fe84a8f878c. 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/USLZJ2438554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18718413abfd4bd34269271de5e2a9dd37ebb865f30f929b0f9b7b1d2c4071d. 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/QZTV32449299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24c8a701b674ace44b39ad116f475c6ed7d471f2c6f225f399d676368e1cede. 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/GBRKQ2567114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d2936549aa2709b4fbb56c73a1d04ba919fec5d19a3c3eb4b0abd66a2262ea. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBRKQ2567121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa202102496ba56e96b76b5c76b56c26725c040c9bf5cdb3627c478286bcadc1b. 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/GBRKQ2567123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8e4c7cd1d551390e439e2be1ea0de6f637aadd32c0f3adf733c2ff574b7781. 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/GBRKQ2567126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc276810da9a09a0917ce2ce4f4be37b824fe13e52cbf9b36bfeb53628d87bfd. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZWV32362937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd9c8f9a23fbfe863094fb9d5c8673cf6dba20b584f383564514ef90ceeb2fd. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/QZTRX2504297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb029eed49e4e29862e8e88304f8a08778dd57de659bb8daf3ae0a7a2d50f9a. 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/QZTRX2504311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0362374d8b879236c560250e23b047307184ca942fcaac2893c1c1a3c5512c8. 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/QZ5FN2433367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e55435461f385e9f05abd7dce60c2cb19c825b6f079ef1d717b861004ed7216. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZTRX2524700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c79de574fb1f842299f680eb55ab6fde60e313029eedb3c67613911cbc8489. 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/QZTV32541082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c4d5b49d7d0daf496178d76eaf9498194482e67d77a7753dec61cd38eebfef. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTV32543055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8e3240a50fd2ec65381118668211007f868b7642326ca9b34f8a4ef72cde78. 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/QZTV32543552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6082c11edbc53a07b24f5e7869fefe4097ae2778039a6ae79247501973df8c07. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZTV32543954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb069faf3d04c805ec01cc23c4db0927c8d9ca2bdc574b13e318174b37246cd76. 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/QZTV32544747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf905cb0521d3ba5bdb0bcfa11610b9b47efb970ec1b1017bf8130704ce13c8ce. 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/QZTV32545122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1512bbff0642fb16ae3debe06209502a3dcbdf54e3d57f357d006fe0ccd786a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/QZTV32545698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75bf48ed0c4afb80417b430d2d0e8e913b2204bcd82449e3b06f63e6e087413. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZTV32545805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556eb0f0a5039e43056d5975daf5bc44bbe3c4be30bdfe2a7b94b054684bbb16. 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/QZTV32545832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850ae6587b960093e1919c9445b89c7bff0c115dd6639e5e0b68096c4038dc5d. 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/QZTV32545845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c65c152c6ef1eda5b374b53924baa035f9b8826679cb6f072594fbdf8fe101. 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/QZWDD2504193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dd0114b120851dcf9ea85094afd57ff5726fae1a487395455d6efea8343765. 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/GBRKQ2206930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ea9c56001c8d2fb257e08340f4af11f3b2d91b43d84262cbfdf803395d1acd. 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/QZWDD2504346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc29c8062d27195e6256d7238abffa401b3a06ccc71e29c89aa82df657e08482. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZWDD2504356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ef8df77240cf8ef7d794365d55252ed4eeca33bb78dde74c64f5b260e2bcda. 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/QZWDD2504370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862af6defbd597c2dcb4db369113ab4656fe2dd3fbc0d5a4bbf99a57a8ae0d0e. 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/QZWDD2504379.