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 0x3906984c28de31fb800a9aef3e7a18a168593eb53a3720b17749e383c8d3402c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9265b096-1a27-4096-9476-a57984df8c27.json and https://artists.proofprofile.net/proofs/artist/9265b096-1a27-4096-9476-a57984df8c27.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 0xedef0228a92c8bea052b08bfd6a918cf03c2a4148817a3bc958e47c475c13625. 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/KRA302200162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff52e69b3ebb3c558125c6f23b90278871207a9ac6264e19ae0a80aaf828d3c. 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/KRA300807319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78efb095df782a8e80d32fb8e2a881b5748cf7024f40f4c0e023ef233dba4be9. 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/KRA302200280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d88bc73e1d440fd71d26876016d08ce2061dc685574d9f908935beb272631f. 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/KRA341203123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a7d337e6acb335697eba49cfc813b831f5f9d825616ec316b82d1a22b9acc3. 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/KRA340918952.
School OZ - Hologram Musical (Original Sound Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d2fb834b97fe9eb05796e98606e56d23b358559254d2a55d2dcb30b1d3190d. 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/KRA301500704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee00f88d6874a4399caafff77a46adda6fe30e2a5af2ac280e185f6ca23cb63. 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/KRA301500706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4863c4a7129e6c26564b9caf0bc4c5ca7445e19f28608ba27f97857b721f3d67. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRA301500707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3377f74ec36bf63c474a8a6671c9c19749753ac4f443050b4ceea2f76f510b35. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRA301500708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2d3cef3e6b35200686fcff7c00d233a76f7a281b67a7eca837bafcb4276987. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/KRA301500714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1b8229c7ea10950a8f21d375c85c0cbfc5fa114981d8722d48cdde59f011ab. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRA301500716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0584a7249f374fbc0750a08ff902515c96eaeac3d9a06b052a7a018bdbde9dec. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/KRA301500718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aeb180a7841fd242e9856b0db28b2609b805a5801d69cbeec7663c3e34857c. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/KRA301500719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb670e6a255190125d656d1410cd17e801e53fededa743f46c33d3f5fe1fb6a7a. 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/KRA301500720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25706f9a46ed96428f4b3951fbbb545a1f4d4131c55a1df5f0c4e92ad9c28e7. 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/KRA301500721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9571f7926cfc56073697dbc0db9a45e35fcb54f7219aae778cdd51efa727a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/KRA301800523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f7b3020b3f41047022ff5431533b62be3c387fb08360728575c6e84288dea4. 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/KRA301800524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0b02c23f2e4dd901d2c976f36335cd4396d135eab94157b75bec2da4f8db57. 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/KRA301800525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5942e7d1e86eb7349dafb2e5337af99a71a765c38793f75284777a6c17b274e2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/KRA301500709.
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
One Day One Chance - Original Sound Track Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc4975816d13b0b7d7a6bb496ab69ae270fe67637d6de00390c88bcd25cc823. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/KRA301500717.