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 0x14ee963b9794bf331b18c38f80528bf6a664b328aa38842e057bc04b3c69e512. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53cc0dcd-8f85-4b13-b12b-0de9ef3de9e5.json and https://artists.proofprofile.net/proofs/artist/53cc0dcd-8f85-4b13-b12b-0de9ef3de9e5.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 0x84ea9efb1a89dc3898ed765ab22a7c0a7f72d3a91c9bf59ea41703f633a1e04d. 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/SE5IB2141041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01617c6e83769727ad9b87acbedc4601f6c9866c060a2f4531a9774503be55c3. 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/SE5IB2272561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f54086b1876dfe643010d22fb1c40eb278f612929bd70868140361ced75268. 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/SE5IB2327079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b18e0b50c79421d0e783d7ab701ad86f76b83b3c47e416bf92e3e517642ca0e. 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/SE5IB2308564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01617c6e83769727ad9b87acbedc4601f6c9866c060a2f4531a9774503be55c3. 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/SE5IB2272561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef217ec189deb45990070bec38f51268f28a90ae2fdbbc57a671a7433104583. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/SE5IB2271665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ba292fd171752fcc24d8d1afbcdc332a703e95b3fcf91619567f547010190c. 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/SE5IB2280273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a328366af148888f22687e18be15674faf0b8a03f255a53ea4c52686296276. 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/SE5IB2285425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7406ebf05a22ab7e5ca027c5aae463db6de960ff7701756cf3fb364904167e5. 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/AUKDT2300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247e3d9a777bacacf285bfe15b420647c353797a82a3cad3a8505221fc66d231. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE5IB2301003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e7f5b084255f22edaf162c54aa62644b5535ccddd9ab76475d773f3a0bd351. 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/SE5IB2297863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdb31fc547d6b8d48871cecabbdcd25c9171ce23c7dd62fc85d1fabbbaf6f5b. 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/SE5IB2295406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee806a88e450e67d7b151baed84bc16778ea2f17ce474d82fb4e582efdb0a1. 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/SE5IB2316507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42193793dcc6c6e913e6392873c7caccda4bdebe6da83de50258e561a551b13. 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/SE5IB2300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b9bf80e57111493bc1d349eb3f3ac7954c7a01c79cad2f6ff360e103c94c7d. 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/SE5IB2301145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab16d835d6e54d003fcb6dc7ffd3ab801bbbaa67905a8553b83c9cad49774d3. 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/AUKDT2400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f66bf4debbf02a61401e38f79158570ebca2e0a25ca82299a00cb59dc102ef. 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/SE5IB2303185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a88a6fc298402c779e7d6127dd0d086e75e90aee8c4a42de4c85fafc384f80c. 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/SE69Z2301836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f48c87372e30fc9e58f7acf7f7b35761d84d461c05c9988a6d62878428f6ace. 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/SE5IB2310983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4f568cda06dca2513fca3bcacf8946b3f459483e4f173d5c58d2b941227475. 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/SE5IB2310083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952273d05bfed9310107659885b883511bb37e269ec3d9e129d2e52723c78629. 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/SE5IB2331439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29a4e0274391152fb568a5aa83a8497288898bcb3cfa77cdd90f197b19ab511. 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/SE5IB2215729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0c088a8ac2c560f3f20d2906822f847edbf299b3ae9102c302d7d1c1794a5d. 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/SE5IB2338447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6578c62e4fe5c570f9bdd47e7c220c97911b80d7c7be34f7d8b331596100b097. 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/SE5IB2336887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d6add794719f410aebde1a52bac599d195f19c25bdf31afceecffba0ef65a6. 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/SE5IB2333731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354aad7cc4fac16265d868f59c75493ce636e1132d3d6c4cd0beaed4479b7a12. 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/AUKDT2400170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ff43e48480f6a06cdd4fca1961cd0e5a281ddbf649094da466bdfd436ec97d. 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/SE69Z2409239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4ebe0434e097cabd2c5598cc681970024378934c395e383c70f07fcd88a264. 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/SE5IB2345163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cafc422e0ad9afc49b34ca40fad2cd69689c4f6844d324ec7990f9139400b05. 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/SE5IB2308801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea45a50f44815840ff8754a6c2a695109c00ad548f9b4fe6641a06c613a547c. 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/SE5IB2300835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4eb275117665ad9d3520568fac2461c0d64450c8c50f1350c786db05302a09. 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/SE5IB2298622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea1612591f4192ce3f77e6a1cfe1e1ee542920f1c799a8ed84ebab469f67313. 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/SE5IB2226545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c96124cd7cc704e99b4578e6b8fdb06416df559fe1d0c06f99528fd374be54. 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/SE5IB2139313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c3fd069438433d547894461683a6ff0dac762bd453a926d2a32cb1b43b5c54. 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/SE5IB2132140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f75b1b194e0e1c0c8417d85a77bc2294ecfc429c9ba55fb9091f89b3cc20e63. 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/SE5IB2339687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c0e02c8ead3d609fac15d83ffd3131903b252aff70a3c1fade986b3fd99cb8. 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/SE5IB2339691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1720743f8ec2a7565a4a0aeb81927b7d07894c01d8dab428bd33b5662309771. 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/SE5IB2339695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00afb681a3ac6589e5ed3066a9a0a73826215496cf30f6b6b58fa232a3326d9e. 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/SE5IB2339719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb8866fcc9ff10a33c8d4e5205191b65a7dc7632f4cefee8c64a9a8826e5717. 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/SE5IB2339723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d3b789bc4d2d4e1cec162d654046b07539a4309bf3e4afa4359cf08728eac6. 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/SE5IB2339727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1337a3fcb06dbe57f41f5ba4eb1c84dcf6ad1d6457a11bfa3ae678a6c08eafd7. 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/SE5IB2339739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2571907f70da391ed72287b5199b82053a9a5fbf30cf18702bc9c06de779560. 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/SE5IB2339743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cd427e6edcbecf4c70efde38c802b9e78e09b1c5b1008eee734fe7db40d394. 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/SE5IB2339759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe079570ee9d3ee858629a441feca90fbc0e0c68d95cad23b4493d7919df3cbb. 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/SE5IB2339779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f3a1b715eb22a4eced134183e493a663bab4374ff90940b438a21a2af580fb. 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/SE5IB2339787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467fcb15bd74f696a9b25523c29cc49b6e63166966b49531216880f477f6907a. 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/SE5IB2339791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5fb3bf8d86d0521ef79ee3cbbbbc39396760d840d3a0b46420a11e6191ad5e1. 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/SE5IB2339795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a206b9279b9c657acb28e03db0568deb85329dcbb84e491a8119fadd422c42. 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/SE5IB2339799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58416d8404f274c7a51aa3c09456284dd8ffe20cddc7a6b37d1ff9866795a449. 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/SE5IB2339803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a2baf967d975c3052330c032350680adcbdfb2ff88255fff1789a36fc161b2. 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/SE5IB2339839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123c733d29130e744bf3b95572c5098406a64e7a245c8e93339b45f0e274fe79. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/SE5IB2339751.
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 0x5c6fb49f32ae2dd5bc9f7217f5524ac3e501618acd7e3890c1175c6382f8cf5c. 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/SE5IB2339771.