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 0xb55b10d2b160ddd23b0851b62825c0138a4b7d7b4e92c1511389f309939a930b. 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/6e42ec39-ccfd-4cef-bc60-51cf4ce763b9.json and https://artists.proofprofile.net/proofs/artist/6e42ec39-ccfd-4cef-bc60-51cf4ce763b9.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 0x7e4f56d419c89023c248ba266c69a3c2c3ac46339e9c57013d4ff62049cb1807. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM90505758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d43dffcc0a94f557c1d474aefdd89cd796c35a829c0573b837d1cf48fd4a3e1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM90505760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc61516b36b94b301905fad6fb7620f49e9fa17d682bc55e309c067f0096f35e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:04:10Z), 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/USHM90505761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97dd670d5b5edf1a04716e196b9b78651da3d17c9f660f4fc7e14366887f851. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM90505762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3b66b01b52b8acb1fc5dfd82978c8322f7ec48a587f4edb3fee60a90f71f83. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM90505763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e147c0c754f2eed54c8e5f2a20e3585dadcfd4d17495ed97f3d7869c727e641. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/USHM90505764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0832fa44c0d876491c9b7b03a83a08d7d1a20fcb4e78b641846f12b549fbec79. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM90505766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ae828134c945015e277295e3e80863c8d542a563b1125885996377e4b66229. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM90505767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c4ff04284febe81d32c774fc2d07b8e8db550878d34ff366dc0168da4fd76f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USHM90505769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4206099135cd39f686fa418cf1fc72b56b515c15e1d497b70edf29224226c2. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM90505770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967c848b2ca72fb587ff0139e0d4698f3061b46795c933934c299ba0c9b7dca6. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USHM90505771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23340257b8fd49b1a5e0051e73360e5da0c8d41eedacc9af11cac20a2d73a015. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USHM90505776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2557a6f660cbe10d4ce5c6b8e2426fdce0358af33bac4c0129002d43162345d6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USHM90505777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c84c66684abd4429e9ad5de13df2db839af4adce88c047e4db8a9958e3b2cf. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USHM90505778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7227d571bcf2b44b7165d6eda5cc0774bc091d10e0ebe53d50a42fc7607cf2c7. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USHM90505779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d0c318b40a9e374ad93c51aacdb66785a1d11d81d26f6875e6ebdd24fc173c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM90505780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe224c039d0d3cc09aafb2ab386c582d5319803b55f4978b8e0d7802a2bbbeb02. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM90505781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6abd30a2d7272fa807c846792cbd6d6de7032fc049debd913f4615a3322de37. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM90505782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e27ddfe973982f684b96e9a13d81a9fde4ad27420f1803beacc7dcd6ed62ea. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USHM80832078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3439ab2743f1e0d5d5970c37b574c4e228e27ecedeecd1a3913a7fbd2e659a9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM80832079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435d128d9ac8d6d8700db7faacf428fda067f2b9c2a644cc0e8c171087ebba41. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427240fac8686d6e8362c76a0d6fe01795126bcc68612b4ba89d18f8191bd191. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:55:26Z), 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/USHM80832085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a06091cf82d08111192150fdc876f1d8b0decfc7188b25eac9550d0c28b7be6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:03:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832087.
My Paddle’s Keen and Bright/Land of the Silver Birch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9026241701252f68ede7da79cc6dbd2be60f5560693cad1c3ac832ac4ab6592c. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USHM80832089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c07839b38639c31a824356e165ff59c4989655f8cd85b4233f89d405df8e7fe. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d3e27551c7db9ca5e98cbc5449b2789f880d2d566202b79a9d89af8336561b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM80832091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e6cf1de14fb502ccffafbe99f27cf339c3ddec9305246c95dc764d2695f188. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USHM80832092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe40304871f44fe064ec4bcf8e090f0a43bb733824654b41b1ed9dde489c716b. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29358e344a099d199147c73772c85f4db48a7758fc63399f593f3606279cc924. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f747899aeab577bad3ce3bf86f99d23f020753767c26e27e2aa510b6094398f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USHM80832099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeabfd480f28eadcd8034eeb9b8a9618ed9a3ca2465eb7c62b8106a323e327e2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM80832100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2dba822f6534b60b15c4939222bc77eed6bcc3b03ab453f52412d499c72f5d8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM80832103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513d648b679ca6d2cace0030c16e29b5d98f7d21ae2eb3be077bf6fa32232c49. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USCGJ1145186.