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 0x29859662e5bd202e81d89e7abbd8515ccab9677dda160c5e91c50ab02da482f7. 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/bb6afc8b-1323-40ef-9fa9-a9b1edbb0ed7.json and https://artists.proofprofile.net/proofs/artist/bb6afc8b-1323-40ef-9fa9-a9b1edbb0ed7.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 0xdcc4b1f016af8d117ad03e5dd95254b9314b311378670d026172a49b608bab44. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/DEAQ21401151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee48f1404d79ee609a8375a4f3b9a8916855198536bb5e31550af55eb240c20. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/DEAQ21500381.
We Got The Wheels (Vereinshymne Rhein-Main Patriots)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af21535a051885dbcff267fb3153990d813c923c7fa7df03b16464f3411a8ad. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/DELJ81872523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff84e4d9806b00c6a9e07ab106ba294c05ec5ce805a5ca71004c8d215eb3aff. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/DEHT11900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568faa5d23c9d42223eef95a9e6383dbc20a79bd1a0cb2aaea1410786cb55261. 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/DELJ81811958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040d13e6728ef38c8b29bb5b30091e2459dc67c44ceff1886f5cc7850e025fb8. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEHT11900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fb1fa499e6d99ec554ee44cd88b56f7cf44d6ef2dd80833cde57e11483a214. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/DEHT11900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28058a6b850b837dcc459531a627ded519f726e438d16cd59d3665af560df29e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/DEHT11900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea6abc9a0c9be39c9f32a5f6cf4db172d28a6dbd28d9c88d677a2f08d0a0c4d. 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/DEHT11900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c427170dc22a5a9170064ca12aafd496d17399dd3af6a408e7a5ba5572912a6. 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/DELJ82048096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307a5e4caaa48953e85a471ea050d294f3450b33dcc85c9d55a6121eacd152e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEZC62156084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e0a3dd032c4d3ca8acb9b39741af42a98235935ec19f1f7cbaa176f8a02cff. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DER652100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd57611d5697af93b53369dba22be0658bb29735eb33ab21cc84c3f2b70ca52c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DER652100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3831f5310823a52a3ec5ec44f16537d091e5be1530a327e4144cdefb71e2eb. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DER652100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cec212f17cfe786b525451b1de268b4591f7ad6f6be8ae39e5892cc6cefe4b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DER652100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6298aeff47f90ce32e30ae7e545e97bd0c1944e32ecbc08374c655ff64aa55. 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/DER652100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d63059d9158a7bb4f58d9bd306f943aed67de65f04fd6b3fccb8b9bf04218d2. 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/DER652100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd179fa0763cec7e680336650df12208ee1fee186fc3a6851f6a053d04175e8. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DER652100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62613fe4d760421e3f10d700261754f944a1487748269bc2ebb0fda8cf29935c. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DER652100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5e0cf2c3be537a668b73a14b888e000cf6edea116cffa2c2a94bb070243848. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:21:44Z), 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/DER652100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cec212f17cfe786b525451b1de268b4591f7ad6f6be8ae39e5892cc6cefe4b. 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/DER652100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07607a53dc230d507b90dc27ae57f92c3f4b51446a8369534230337f8045b461. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/DER652100083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fb386581d1467e8b432c0cd9e2aba0e8e5af6a798f7fe33af8fb881e1068a2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DER652100086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381785c9e90cd0da2371d9e1e5fb9e0440c6a042426b96d9286d9e741493d252. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/DER652100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8694b9dfd168f4fc11d455b16267168b3d5e6f1f7dea5cb85961f6d7e7307a8f. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEZC62411202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaea15b40beb1cd69051f104fc8c42ec1ec58c37770124d6e1573f75cca4a5c4. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEZC62415990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e698bd8f3ad9edf4f037f33632c19ae16a646a91ab98e61b237944d2d378c20. 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/DE1K12410201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e977ba476569a578e7b02967339baeae09acf475eb07c9eeeaeee18738578. 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/DE1K12410206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f897a96df154e2174096dc61d9039c1945dbc74ed4b7d1f826a3c1c9490000. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DE1K12410205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f500b69e3dd41432741b951782a1eabd891522a5b25c6b5b9f7b597442b1ef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEZC62360588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106555d100028858fc9685d30c21c421eb20f9273a555e9ba11c9556ce1a8106. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:44:27Z), 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/DEZC62368725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d8fb689447dd089a39c17c9694fe97fe4f7e382085c42940f4234c9f2affa2. 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/DEQ022105339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d8fb689447dd089a39c17c9694fe97fe4f7e382085c42940f4234c9f2affa2. 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/DEQ022105339.