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 0xecd104145c1273c0017d5a299a3cd1b8af0d9a910183454961d920158d6f23dd. 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/bf76a546-0b90-498f-8482-5757c9ba0542.json and https://artists.proofprofile.net/proofs/artist/bf76a546-0b90-498f-8482-5757c9ba0542.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 0xbbf26e5e6a0597ebc239d36a8b7c38194acf4372ea38af664d18db8beadc6422. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USFAH2037001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa98521cbfd13f36f2eba0c2489b0ebd2a7ca3480fa7dd3cbdeeb7aca5ab1c9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USUFO2046101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c9231c7ee5acfd6374beb5d163a95259f2abcfc1a3dba3103bda686ab99585. 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/USUFO2041301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbd599f42eeb58ad0ade1b26db9f0c631422401a2e8a8608ad3e27a6f4f49a0. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZES52437995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d7969e408de481ea9bc10c2fd2854cc19d67a372e241a105f7cc76b2976e18. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNMY2161300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf009765fa46cdf4a2d0fbb4d9bb52ff926665e7f9dfc5d341393edb6783e0d. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USL4Q2590460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f05377904a05046597034fb07659ab177ab7b4bb3ccc0a6caea1bcac660bff. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM2571821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0043d11e316825961fa837948407f3ac5917ccffe6564e33a2fb1060e170fe9. 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/FXR752302148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b19b6b627a0441fd5fbcd7fc1ce65b7ded676f9bcae4515c0cfe744081f7bdb. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES82407798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745b53ccc64a08dc1290df09af355087430becf6d72ca2a082465f7b4bbac0f7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZK6M2462502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6027eaf1cfb7916b08f4fbd982d2896902b753e4aa0219f329d2efb3d3edae68. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GX53U2481118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc745bc2d226bd80fd5a32a08b9c84d07dbd1817c8156424370ccde6ebb30f5f4. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GX53U2481119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d088b55f70bc6586defe5c7ca19aecec67ada42f5e77c31d88338956f6e4f1e. 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/GXF9Q2403363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458f79af948af68e8e7d7f153798f9462093026fa993af442ce5c67521d9a88a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ESA012512007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63833c5f7ee58872f3145ad79b54e8db7396dc10209b3659e6aa4a009d7c0fbf. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QZLBC2506166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21befe29eda029523bcf55a5778ab9e308dd166a52cab375da9c344ad2d7fce5. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GX38U2564757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d04d3dca7d89cf3b38d958437360bfb168438eb3a307309133619280b1d18ef. 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/GX3HH2517645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b4080b3d769a8b48d81a31baf420419e1d74becf6b7383ccf3874625b33b46. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX3HH2592546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d03645bc84dfceeeb7511920da28910ffa2dbcf0b9059a687989d27a5edf08. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/NL2J92510690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1412c6ab4ce84ee26190762956c6880de10d332a4a11f84d83bfbd512b42bb74. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/NL9KR2306858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562844b4215ebe218c7324eba983b95f7f86644ca8e34e3887fee8028e77d762. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NL2J92510444.
Munchausen Syndrome by Proxy (TikTok Hard Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216a34fe0df447e7297f62d734a345ebcc44be22bee4a279d390e166e1d609b8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT65W2582659.
i know i know you know you know jumpstyle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42aa542d8d01d96d5f7d2e34a22bbf53dfb5ba2b2dcc88641a649f695a55fd8d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QT65X2543510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc190f7d1a4db8cf23bf586c1f71376b7ca473e85f377cc85859b8fee86f6b48a. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QT65X2509029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f5a14685939ca54cdfa4364a00448d5e29b9694bbc72ef339cd5601944c3c7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT65X2509041.
I Know I Know You Know You Know (I'm So Fucked Up Please Help Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a9ad0b4ab4fffc9f688f64844cf27ec4867f8f1ef9c863b526ab206e8cab49. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/USL4Q2555880.
I Know I Know You Know You Know (I'm So Fucked Up Please Help Me) (Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0697ba30d6da8c78afcd1e33ca2df95eb16f540975da2347634d573e468112. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USA2P2547784.
I Know I Know You Know You Know (I'm So Fucked Up Please Help Me) (Super Slowed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbbda9e21bd192943b32d8bd7ab53e441966ab97c295d595751349b8df47652. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USA2P2547785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee90fbf76c1cb163f0dfbe259f550d94cb446e374207bf9cba41512b2338f667. 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/QT65X2539451.