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 0x09cb664048987343cfafad4e0aed51e9018775104a47f9179f460c35a20af73a. 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/fd19f320-296a-40fa-89d6-c9f859e77af7.json and https://artists.proofprofile.net/proofs/artist/fd19f320-296a-40fa-89d6-c9f859e77af7.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 0xdb2948778ce622c50963b53559ad779bb73690cd32c0519afbbb4a0c7ef452f2. 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/USCGJ1728596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe781b913612dfe46696fdd8d9790de8911ae5c6c1b4fa316947a2c8c6809b0f5. 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/USCGJ1728597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf145478ffbe0e28142145c7c0d78e3186441e90cbb757d01f59772338a18c6a. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/USCGJ1728599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b772ad397836e2780d42543d378dc4a63cf273c93342a83cf790e4c0fb20ba. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USCGJ1728601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e8bdaf9e409d3a41339252440d14bc7c7cccd39c44f38e6e45e5e3758c4e22. 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/USCGJ1728605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248609075437ae133040e9fc60edb31eb4d7f19c7b7d04d0ae040b99800a29c6. 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/USCGJ1728606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd88e7b3bbe7a81bfe7cb4622895c81752634445cf42839c685abf03c692d3d9. 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/QZANL1764890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec1e61cbb8bc12330c59a55660491b15bbfe18e6534b7e8d6aef079e4f673a8. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZANL1764892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3575bdafa4f2565ac39b7c419b9612ad1066e0a22fc7476767289e432e80bcdb. 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/QZANL1764896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0803309fbece2b85cf1b80b6f43ff9fc8b492a97725bf2ba52a1e915f38ac0bc. 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/QZANL1764899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c69d5a5e76fcbe595e37a6b71bf04a6d4a2446d2b9803f8804c77f81e3ec60d. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZANL1764901.
Wheels on the Bus What Do You See? Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a0a81b121e19bb757c47393b30a944ccfc04d1a8655ff8d2e8925652913680. 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/QZHN31930569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ebbd2dd1019018f669ee8a30c4a3817a94e57142b2a250d1240a2ab48b793. 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/QZFZ52166596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6ad4545df9d85be60eada156e94c115af842d93e9b8d230e9a3775ceebb17d. 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/QZFZ52166597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594935d94affcb3f3ae146ab5df5b6f719a5cb00312d96427fe20323a46270c4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZFZ52166598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77016409eeb1192ef91f4f1f894260ca2a4131217cb83520fc10df0421c230b. 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/QZFZ52166599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb143682c85ca75d2b741b8d014bb9f694c39868723d46fcf1c0bc073edafb7d6. 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/QZFZ52166600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bd7fc623ce06b777da9338aba3cf80f5537e5240ff8485a33705adeb07d8cd. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZFZ52166601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ac3b73d3983b218e4f3d95f9a6453e4339e94e5d87b5814f6c4be2d461f8ce. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZFZ52166602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192f3d918a97eed5de56166687423dc19df4ae10b00fd9ed6c83478738e1d881. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZFZ52166603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3302a3eb39702c3f466b241beaf4b51be554d8bb6cf9c051987586ac0e43292d. 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/QZFZ52166604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fc365a0a8e7b63a75eb5f6969b878adb5ce7e63c14f4f5eb5ffc2514c31df5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ52166605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc2743e2ec7ce3f49750553895150589b9e3184bbd192a35be1cb5e6a3f8c49. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZFZ52166606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8353b692e4615333c192967aad6517120e6fa58113c83106de9add98aaad18. 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/QZFZ52166607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97967a72860091c6a28634ba3b985fd953d088eca042c9099674438158d10e1f. 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/QZFZ52175554.
Good Morning, Good Afternoon, Good Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb1bc8bf4b5035a883a51329c118759f9e78c1b5e9064b2406d61d553f62b83. 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/QZK6H2109916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50f59689a850f941f0aa4103f024359c1c9672a896d5dfe72b74f901e9e4b2e. 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/QZK6H2109917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406f538aa3e075970089be7aa22cda3bb88793ae40566bfcfe7d921127a58ab9. 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/QZK6H2109919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ec1f3abca336cb4030258d906bb43b256700f9f4ad04bd0878b74201e562a6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZK6H2109920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240e52ea4d73dc13a46b7c593df1ed489416a0c734ffbcd12081976e4b5fcb55. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZK6H2109921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246fe9920c1c1d6a906f537589b794b5d5e6b1feaf124abe9a8daa200b111116. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZK6H2109922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbacc95335c1d3e4209ace4f03e9f2d059a6aefc7b7e640c915dc8176e8ead4d1. 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/QZK6H2109927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e7f7107c3b232099c67fe468ff2552b23a518914a5082b6c920c290437c0d6. 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/QZK6F2268533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf178bb889d663c27a86b9b3c8224c63ba490fc4db85309d358e8e237d2f77dc4. 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/QZK6F2268534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054f02f5d0a832099da9e7be8ea10a0de865ef9482052cc77624828764412c21. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZK6F2268535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d53d5982d718e55d45734c96358ec604623f0ef9a8df00398e61aff64d86ac3. 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/QZK6F2268536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc900db4eed89c0d66058c633c290225af343a31c7107dcacc2a521341ce44422. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZK6F2268537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd3335675a49b8671695ea4c4636e6427486804517a0c505d4cca4ef2c7f01. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZK6F2268538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec56b913ead152ac7f97bab15e2ceb9b1909735218559e96000c411539d42d35. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZK6F2268539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7702f282f4cf2fa1123b5d2fc2e2d273dab1221627a535d575dc9fec5b14a7ca. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZK6F2268540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d0c4132b9b2c1d18ea500ea0d18f9f60e9e812d10b5e800a6524d254dba47a. 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/QZK6F2268541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bafbea53a535e930d6c9ee4edd73fde92c41885567806380a973ef69315489. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZK6F2268542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22d5f43a15fcd12bad4fa1ff84342be9614689625d0a7ad0206b09a43a2c584. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZTAW2216820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9743ad8e5d2afbd0bf911e1c18dbac19b92de0fe4b6c7c425b49e71321f13a23. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/QZTAX2284630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557ecc306d8c8297232d3f74742c4acb2fe8fef92e338e052caf5e924035dc3f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZTAY2214328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd43a0bb2a49efd7b319ccab646c2377b29832c69c84c6c5904bf4d739872af. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTAY2214329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59cc77e9ab8cc46f35a7d080e32d6b099245c6ac9c5470839f821a4db62c3c6. 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/QZTAY2214331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99da53b8413e6d590ca1cc3c1ac20b5996c0335fe8a210c794c552c9f0eca6b5. 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/QZTAY2214332.
My First 100 Words With Matt Book Chapter Songs
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