Joseph Lamb may refer to: Joseph Lamb (composer) (1887–1960), American composer of ragtime music Joseph Lamb (footballer), English football manager Joseph Lamb (politician) (1873–1949), British po
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 0x8df24e6c36936a4a7cba35a39516047c29f46b2bf5d4f7ea1eb796b6dd9b4b84. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6cbdadb-d46c-42f0-951a-c4f13cd30e5e.json and https://artists.proofprofile.net/proofs/artist/d6cbdadb-d46c-42f0-951a-c4f13cd30e5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Joplin: Rags, Marches, Waltzes & Other Piano Works
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 0xaed6737d28613d11f1a66786e0a032698a28e7f7d3ae550acac7809492c2eccf. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/ITBZ82300653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4bf96c66a4c0c9bef71fb1b34f147aa39af57067c9b1b8cc6f71f9ed2061ab. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ITBZ82300654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fa28b4b7e529e1cc78a459bea5c05bcbfa062358992dc240d20bf489fe003c. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ITBZ82300655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9219aa873e6357894eb29faad7a42b918a0ed457a89c5d92cd54b51443825512. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITBZ82300656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedc250a0e46c2d0faf780751a47fac4f0cd94e2dc5a6300db26ca64eedb3d26. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITBZ82300657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1519f335a1809045ca6fe8c900502bd62ec9fae8f99e3d47eb203c55b2430e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITBZ82300658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7668143670cf9d876973c79d1eb01312564677d11db7c044bbb2324651508d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITBZ82300659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5b8784f23c6d048221d7134670f9d7252dd10940419be20218466776bb07a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITBZ82300661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d943c0c7f2dcfeb4df0f8a6401ca3de32e24e3a87624133ac80a0b450fe4554. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ITBZ82300662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d68c48bf6bdaa705b6352c78662e2eb773a7d6837bf1fecf0f4f1a71b0dc4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ITBZ82300663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3705061bee5b3410d669cbd58e08daae8e2a9f7382912bf62d1b2ff1278ca8aa. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USNE90803501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06cbac83bb9b7ae7d3ed439e9906dd47f4a7476694bb0bca10d8af1942e7fc00. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e4b769462f97640d21c5a511ac929693d329959145a82b6eb68d21157b8238. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b8bc1a63e1227add71f3fc781c07d0f1ffd4d7d9164879571c1364ee13f5bc. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USNE90803504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c9b19c6910743cce68766d75700c84acfefd60d76d043e37ac0bee3231af78. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USNE90803505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fef0302d155cf40071df17015bc743899262c3a00086e135db334832a24cb2. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USNE90803506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6443e96e848fcee2c70417c6b6f46bce5e2b3b275b547f657183b5bba6c8ec72. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USNE90803507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879e0ac2af7031206eb3b5584cac7d124c1336dbc3f42d528905b3f9777ec09c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USNE90803508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37567d192614c0c085d63e34fdc26da06511199673894e8a4db27cbe9f88e298. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USNE90803509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b1c5ffd8696b067cca00d3121e21c2080a3079345c700aa17989c5f93c9122. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8c477069a646150a2673fa3bd352833ea7fde4bdba0923a7925f1f4eef0c02. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USNE90803511.
3 Ghost Rags: No. 1. Graceful Ghost: Graceful Ghost Rag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872b5408437ba7b26d627a99195a9fd86fbe096e850b9dd4ca6465fc73523baf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592468d527fc6d3667dcff3644c15591919c219f7689ff68085c4cd3461f612d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USNE90803513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0148dc77452d462f31710490bfe91413c443bab7883281c9521b616f4666bdd8. 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/USNE90803515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95eb02bd867e07abd9f9faf8d117df8212b724c7ef82daf193a84c735e31956a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fbde5fbf95db3adb53ded480dcd7d6d95efc2ef012b9133be4842db746c4d2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USNE90803517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afcc2149a16cdca3108f1834e1e476d1deb28113430c9fc907efbfeac43cac0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbef2037141aee80b3e2de8c53146519f225f6d4aa08ccfd5d89d605bce3a86d. 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/USNE90803520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f8518c69db83e6e0e7a85a409fc8c3ffbae6ea51a88eb492a25767ec52ad79. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784a8f9686b3c0d167cb6778014ae423d0831dcc85116dbe6822823030bf907e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USNE90803522.
Avatar Brass Quintet: Magnetic Rags - Ragtime for Brass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb539306a5c3882d21e71d345fce397321d32ef5f8e21f18a54bc67c11e188e15. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USSF16056201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eabeeae4f91e45184d2c3b1b5612a130751082f2e099b6b54e705fbb7d113e2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USSF16056205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b5cdcedeedffe4ee675c0ffeb5fd881289def3fc1b93d8908b23b6cf0e4139. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USSF16056210.
50 Ragtime Hits - The Best Of James Scott, Joseph Lamb & Scott Joplin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe09fbaff90ed1c9534943397e0c016669827d67797db7f64d9aeb3f4bf22412. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US85H0910684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0df067332717c7f4d16542d0d5ea240af6c8e1398006c6be98897853852253d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/US85H0910685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d64a501644483c780657a3c72dd7db013ba28ae050702abb2338dd13f96a1c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US85H0910699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9859e1fb859073b80d483884901213eecae6eb936764a30123128e74dcf76ffe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US85H0910707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffb506d90ceb02d66eec3e0eb54cfeabd1cb345699d8b8cbbdb2453f0ac8771. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US85H0910710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161bdf896348b5ae2647b7fc1cc82100a4e96853fc48ff289cc139fe3df0f5ed. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US85H0910713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb1c575407aec8f80654c9d010e5dd57c584a506181d2737f8bfcb779f395b8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR0V61306301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f55f83d3a7377aae2019a598de1805a3066181cc69c678c8999657580266e2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US2392350346.
Ragtime Piano - The Music of Scott Joplin, Joseph Lamb, and James Scott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121c09b75c30bee85b79c910847e5bd89693ef4c11109647af9a45b6ed598071. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QM7281591808.