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 0x8838d9a42e4474733c5e3d0d54f4a772f6122ab51985b31f2dfa45174fcd9615. 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/6970b8d4-b595-4030-8a47-48e9ba3bd426.json and https://artists.proofprofile.net/proofs/artist/6970b8d4-b595-4030-8a47-48e9ba3bd426.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 0xc3ff120da6c10b3dd8e0a3659a0c54371f9dc817ce95864354675dd4615ea27b. 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/TCACO1685583.
Came Up (feat. Post Malone & Key!) - graves & Clips X Ahoy VIP Edit
Came Up (feat. Post Malone & Key!) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe526e84e109a49fb745f9b188985b06f155f1ee6cf7008aaa4f8b8660be61d. 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/USUS11600510.
Came Up (feat. Post Malone & Key!) - Casper & B. Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x948020388dbdccb8946a39578a2bad4540b027f1552ace1b9bcaf86980647476. 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/USUS11600511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9862fb6a52dd0d2c8f7e560d0faf75ce9a1c6454a7c949d7d938505128dbecfd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUS11600316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9605c7dc80d8fdfaea6049f53c3cdaf14a5e01896a602308b85768568ed33. 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/QM24S1701119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907268fe3cb147f0ed7f07cac65eb71d78cf663a5995de0dad3657d0e93117ec. 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/QM24S1701120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0be753bf8671bca89b7fb8727e0a1be3b667317d1f4f900b1158d0a9842ed5f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1701121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6dea5faf8b938e5ef602a1d5aee7ace9ea0930138aebbe88129eb7a449c3da. 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/QM24S1701122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eec94add20bd8c13cf5162c2d9be856c5f2cf66b2043d040a48cd05323e3708. 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/QM24S1701123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25568689457bc639776a7de70b7acfcdd50c02c260f59f79c4c455d3f295e3b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S1701124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa471b942be586e2e9ad0731f7b725b957e492cd076930970574f0b5acf69843a. 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/TCACO1689525.
Came Up (feat. Post Malone & Key!) - Rickyxsan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8039b3ccbe786a14db5016dd0e207cbe442becac60df3dba5f452ca381bcd21c. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:54Z), 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/USUS11600509.
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 0xcdae0e6335556c725957bf354d58438fc646a3cb027747cbb339011583f8382d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TCACY1735471.
Came Up (feat. Post Malone & Key!) - Jorgen Odegard Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2318f2d45cf15ac1b078403033b564d978f51447d55373b48bcba53d0d1c92. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/USUS11600508.