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 0xdcf134ba92bf2efd2a9766efc8a3a1bd27b2d4052f8fc60d324be7dbfa6ade00. 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/540e5076-dc5e-4629-8245-646853566edf.json and https://artists.proofprofile.net/proofs/artist/540e5076-dc5e-4629-8245-646853566edf.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 0x8dc5b03d06caa6f526e4cff37bbdce8d9035b072308c445223e38baf9917bdca. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SKG181300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdc2c002e6decfd1b3df563296f45d89a642ec2c7a43194b52eedfa15c1a90e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/SKE271300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac45628476f224819b7ef90256fcfc875b6ab9da2e11c83bc32694020cf174a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/SKE271300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338996bd3d5ca0aeabee2269b69b922b458386ca62ea3c3c560bcc57bde9d3cc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:09:40Z), 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/SKE271400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b19794f7424c360006437b98e16405ca31ae8e2700c87093846b72366e0383. 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/SKE271600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485e2c324ba2547d59062abe2ed24d2b9018807b0f1700521b54caa52ae953ad. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:07:26Z), 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/SKE271600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dffae1058220cddb4520e26123cf7f7b75917f657f2ef8a09f9ec48a34d07e. 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/SKE271600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf881f15d5049101ffacf57808a0e0964637e4f5ecf6b38e346ac79db3731328b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/FR2X41933619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbbbcfd734e9f6d919a8d0c3fefaa14d5d9ba875fce0967a7aaa0416a5111fc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FR2X41933621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e3994f3dc09dfea84e78b90f1aa28965dce240ddd265f4d32b47616a8db30b. 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/FR2X41933624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc354983dd4780b1213140de4a3ad511e3270044a0307ef218ec724455e4613d6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:33Z), 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/FR2X41933625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d90cb966927522c190330d1adb1f3baae4629a16fb2f225c49f0d2c6d7f9588. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:36:27Z), 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/FR2X41933628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c0e2ca6d99d97044642935ed924a17e58b1fc598f6007ae36ab1380541b07c. 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/SKE321900201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfb741b3f6ccd42efb482c3328dceb3192dc21ad19d8e6da17f3b7bcb07513d. 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/FR2X42054861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840d47694c48b5508ef28eb134f850c9061e6a72beedb8bf619ab5b488f925e1. 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/FRX202074038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840d47694c48b5508ef28eb134f850c9061e6a72beedb8bf619ab5b488f925e1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX202074038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b6473d7d3d14211ecdd14327278d665640e9da258b929f72fecc42d89c28ec. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/FR26V2034732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fea8cebbc315ac13515e12e8da0ac76ee0a2e99a020bed2fdfc93885253cfc. 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/FR26V2034734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0864a89f9c7a111a4501ecf9c9a10ec0b762ba5dd623e3b48aee8819a70114b0. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRX282134539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2186b944121aa745f3566ee91d1c2424463e82cb99cf469b4ac679db7e0af7d1. 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/FRX762120843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab60dc03ac23127b6238508ca7c0f9dc06246721cdf37cd48f007c27c47179. 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/FRX762120845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0864a89f9c7a111a4501ecf9c9a10ec0b762ba5dd623e3b48aee8819a70114b0. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:01:25Z), 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/FRX282134539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62487c72d02f7753d2102c9ca38ba75f0de645ef01c7dba6096725d4831925ff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX282134540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2186b944121aa745f3566ee91d1c2424463e82cb99cf469b4ac679db7e0af7d1. 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/FRX762120843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ab60dc03ac23127b6238508ca7c0f9dc06246721cdf37cd48f007c27c47179. 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/FRX762120845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16b2dfa29146a440310e89f0f3f3acb43c8eb150bcc6a8d605ef68a9c0fb48a. 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/FR96X2219790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40163026f83df40dca06d3ebed46e2f033e9e5baf7d976db8b9e1f6401cb4ea9. 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/DGA062297267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07826cd2328f5bea25714641ecc81f1c863a15a06a2ce6e59ed8097ac102b4df. 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/FRX762340400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe5fe5eac12e000c07328f4010fbbc42df44990fbd97e0f2ca993a04977a4af. 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/QZWDW2394396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c9cfcea22574d266b343f22c68173e6db90255e3adb6e4cff148a1408716eb. 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/QZYFZ2368367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aabe333c2961482fa7179dd3be771af24abcdde7e37ab5fb595e17eb072595. 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/QZZ662343804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a2756ed7c4f77251e986b3663b842670a5dc8a7210211023ce1c11bfebe6b5. 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/FRX202358858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7215f78bf7c4135d22a82c57c2a8883aebd529bffdbb232efb67709f52b7873b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZZ662330535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c9cfcea22574d266b343f22c68173e6db90255e3adb6e4cff148a1408716eb. 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/QZYFZ2368367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1e1dd6a9b29fef70fe4c1b7ea34fb9f282e51ca410c762e8536ce8ccffb058. 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/QZZ662343803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aabe333c2961482fa7179dd3be771af24abcdde7e37ab5fb595e17eb072595. 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/QZZ662343804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe5fe5eac12e000c07328f4010fbbc42df44990fbd97e0f2ca993a04977a4af. 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/QZWDW2394396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f01239bd4a822b199ece9f08b37515243250db5bd6b7f9b2518128f854eb4c. 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/QZZ662343805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfb37dd26d660fca744137726288963a613352919fd0d0e91c43b8466e5817f. 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/QZZ662343806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b470f6498cdc9abdfdb8f7d7af335768e6bc2e120852a1d11b4ac3f35c35670. 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/QZZ662343808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4e412dcc8eb8b6b7837bdbbf31817d04676f2ce9ae1fe412333a491c587f7b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZZ662343809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07826cd2328f5bea25714641ecc81f1c863a15a06a2ce6e59ed8097ac102b4df. 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/FRX762340400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa766c6038e40ed0c71356d1d8b7b638b189198d5e11e02aa19f7ef9e8f770911. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZWDW2400226.