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 0x78c1d3ec4957bbbf47394ea60a563de9eca487ce0cd247d31976d5396d723682. 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/f9205bad-8717-4c83-8395-f9f14b39a357.json and https://artists.proofprofile.net/proofs/artist/f9205bad-8717-4c83-8395-f9f14b39a357.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 0x10b87ca7af5a72f87fb9d43ec221dd22bca690814332a133fc64703f44a7c954. 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/USHM91797834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d14b163b458defb73f936d5faaf765254610402d23b8e580f8e62661b8c8e0f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/USHM91797837.
Come Together, Pretend Whatever... Celebration!
Come Together, Pretend Whatever...Celebration!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1c6222fb171b5765690e8035866d0e992129d4cf70362d6a112f4126814a0b. 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/USL4Q1812973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3819205218b033cac8fb51704c1516dd4899394a5fcfe7547a5a54a025e205d. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/USL4Q1812975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11321db3848bd5b87e2cf0fcfa828250ce91947af25d0212584131644fccb50c. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USL4Q1812976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767b7b3fa8dd1541a4996f9433be6ac7dadfd59b20bd880f36a39f0511b4d500. 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/QZES62169524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d0cff1d9a948287c21a4ab25323f8123b4650399e2a90142924cca657cd8a7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZES62169526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9e897ac550901adfc9bf9c710d867c390e3b3cc291270d2d8e124c5fe9d2ee. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZES62169527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd4a741103c94df12540918acb257ced1506dacf93050ed8c9a23b4fb1c271e. 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/QZES92115907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6249186ecda40befab8f6ca2165202de795837a8bef2f70da52d9a3fe06220f6. 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/QZES62169529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ca7f9b9139f59ed18b75e4263fbaa173b51740ae024cc47cba0ea3f0b2d2f9. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZES62169530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517c78b64dfaf9ba88a089a9dd5583629a78abc1f72b6dadd8d14d554a2697dd. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZES62169531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5803a97b96744015d9c2f5667cc052ffb8ddabb773f86a87d7429770a02564cd. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZNWZ2190489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201825a808f59a47c3dae7020de68ee98b7c701e3a5ffc8634b59ccd4407d2d6. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNWZ2156571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51148c19a3b9a4c3b036f3cc1b8f9bcdb0888f11e5e41d8b8ed8ddcf41a7a912. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QZNWZ2190490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce6354b9e27bda4e7f12786b393d2c0563fdd2078f7c269c84bec811f0dd1eb. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZNWZ2190491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f9a32b8c113c2ca121c1e3094c5ecaa93c04e10bf1d3ef9ad49933cdc3646f. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNWZ2156574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619a36ee71043e51e4ac8cdc6007f0e1306e31f3644de4c439113a2f5d8823a4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZES62169528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f8fceeb1a53fe41a70a5a8aa19387bf0699ebb40d44255fedb36e691da4758. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNWZ2156576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fed993f14bb7d187f834f2bda10ad578cf094f7b3925ff71769655a4f8861d0. 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/QZFZ32241974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fb06914f850d6a77ee4d883a660d31618cc0e3470ee392fceb66dbabc93964. 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/QZMEP2210047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db1bae792217f40a5571590b7dd00d8f885a5ba3ee915d1e61e60aa00f3a71d. Chain 2 (Bitcoin): anchored in block 957957 (2026-07-14T05:10:34Z), 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/QZMEM2295578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2e9e6cbd3d07f6a21b1324872f080e745b1072c711ed16e99a66519fa64260. 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/QZMEM2295579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbface2417ade7996e8e983df539873a6f38f6703e5bcc53274c6c05192b9c28c. 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/QZMEP2210046.
Log on the cabin and a cabin on the hill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf270802ed3d531169970deaf7740cdbcaf4e9513d5d4ed085e9883529f2dd80. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZK6P2161280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523ccc5b2cd15249b9ed7b662ddb44e84254d5b2b05fdf9ed0d9d53a886fe037. 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/QMDA62419524.