1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x985a84dca7514168c71eda288355f7b7b2c1ea70cf15bbf0aa47bd511fb1b4a7. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e53352de-a5a7-4404-a1de-9d9a35eb0bd5.json and https://artists.proofprofile.net/proofs/artist/e53352de-a5a7-4404-a1de-9d9a35eb0bd5.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 → block OTSBitcoinBlock must exist at that height 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 0xd7beb4d49cf8affbb0fd083ee6832d0386fba4b80228078116b440f37bcd3e1c. 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/TR0281906102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b38aa2ebbbcbe9aef314470cb0cdf9a340909254e88fadedc67e6688f6f2455. 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/TR0361700243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf981283c6676f08c2c3bbbdb5a2b68afc512ac355b8d6718304c08568add522b. 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/TR0361700237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4ee7a4579b0258df744cb8d3e6be7d2d4919cac28fab014ae277a2aee6a69. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361700230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc401bd0a5c602b42507fc8108765df910b77454551816af987775b0fd0febba0. 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/TR0361700235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f1b511b0ad5deaeaebf2cb1ab993add2c96b4db7465240264f83f05e321304. 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/TR0361700225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aacf90dcadc81f57146c84fc726544ee531ac9fe566c7f0354be184d150737. 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/TR0361700232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7886769832f428587c44627f7628d893ab7a422d0908993918cdc9b64495a94. 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/TR0361700241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5ce4dc30cbe4dfec964d31b08fbadd8e9953f11bf77b897a19840c51ef3c1d. 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/TR0361700251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad83eb883685ab60cdc711bcfe913ed1e9265401f279582dc7fcff660efb2d3. 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/TR0361700229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374f67e9bf98285484464637aea148a6163381d8b1d6200f5ebde98d128b318. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f907e0cc9cdff348b4704dfcda50d4d41c5a83ef566f04eddc7de3b9d90f88. 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/TR0361700233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379a4e036faf672da3ddff4ebd4132438825e09c9d6853e58df4b2ac05c2c736. 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/TR0361700253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83211e5a3197c1652d029a177c3c2ea23fefb4125a150bb322e9b3bed0e55b76. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361700244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9178df066a49517dbb8096564d580231a58155dbdc160b4a9aceeda601e77c94. 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/TR0361700245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4c85bcb91895074c94fc7d8c94e097672afa14e8e2e4817e0f7d7c1262bb44. 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/TR0361700231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2826a9a5a86e939b79522d7093eda1be2607bd5e3f7916b42e2ff545909fe0ce. 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/TR0361700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1417e97cf6636025bc917d713d16cd5839f49a9fa09396b3aaa4137b3cb72918. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TR0361700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe466d3d6d264fd0c8e1730793445f02b9e33c47904644ad0f0ae440120f71b0d. 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/TR0361700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf117008386b931a92557217227f7c94bdeeab70d04aa95ae2199edcbd227d36d. 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/TR0361700234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c91275edd53218916fbddfe05ca216e0037f08f657347a7955b5a3ef643c746. 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/TR0361700240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1582991fcbce392c3254982a5bf8fd2125acb60cd30d1fd3d97efdfaf61a3f0f. 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/TR0361700226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7715156b6db1d773fd520bd85ae41f73ce2da6fc2ec7d75a2e7de3502240d83d. 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/TR0361700227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e1b4059184b3431db29990e6da8a0d79a773da94c2f8f98c32a68c1eab225b. 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/TR0361700248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461cc35a7bbae831d4ecec6bf8f8fefad39772736cf1c62876118016a61b3952. 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/TR0361700242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695f82b8a8756a8761f0ee0985ae8521592d2d1d6564a215c6e6551bafe8bca2. 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/TR0361700238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8fff0222edda2649b996e493328b2b6621db09c895105740684e84c17a828e. 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/TR0361700239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349468cb621d89d794e9e9265852fabdc37f7acbd4a4e00418ba7cf3bc4cfa33. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0361700224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cda544051b137710cb75a7ad0984075415bcc4040ab3cc4e38f8dedd4a9d178. 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/TR0361700247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6862e04a6038f212b960067e7e54f01defe04512cc0b0e4678fa6a3692e8f68c. 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/TR0361700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02952dd87f9eb066730480499df86a75c5a7c66cf446ab148d55fc76e61cc6ae. 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/TR0361700236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d0864a7fff25f9f93261ce4a9488258f0d7199c17e3088d88a024d632e2ed7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR1231600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd187b5952f20eff9bd705b0ac363be0a33b2d8ca477e56c0f1b5a3e4c0d25f98. 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/TR1231600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5139059a7f22c36070e429b8a1bf3bedfe74fdcec260459a657148c22a7a25b. 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/USHM82123768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2641a5ec3f6495b6c12bb095871dcc4e13f243c30a7335ebae29773bd30b8723. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TRA162000284.
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