Cool Heat, subtitled Anita O'Day Sings Jimmy Giuffre Arrangements, is an album by vocalist Anita O'Day backed by an orchestra arranged and conducted by Jimmy Giuffre which was released on the Verve la
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 0xa6e24d4454193e2688851acc6e6266417313ab5d8d8a6084b86937473501dddb. 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/97a0f1b3-24d7-4d69-a1f1-f4276ef64a7e.json and https://artists.proofprofile.net/proofs/artist/97a0f1b3-24d7-4d69-a1f1-f4276ef64a7e.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 0x5a4618f779f01e6aecb304f23f37b3f27d64f4fe018304f4136fc451ce559641. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX38U2139433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af957d27c1a28ddf198ae5e360d57440d95964c31ed06b011ae836577cf5f2d. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/GX5MX2248256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa786fd13d7f4c231ed827045d17b3734ec2ac9eb16f210f1c3737ab11741e14f. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/GX5MX2248258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16558c7c78ee7f5aa8d9770ed09cf9aa09e423bb9d03e943ba5e545c5cf10d1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:54:40Z), 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/GX38U2324620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f257b2e9c1f97e4d096b6ffd8adb2e63488b9fe099dd54b0fe6db776cd6e0b8. 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/GX4R52488845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fce4637a38c81082516fdc8314e2da21f17e95c7fc6ab87a835961f8565461. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GX4R52484177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841e27dfc2e8933782524a0d326f0aa1701a50d7f64644a0b9c1b308cf03d2a0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX4R52483221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4362926f7edc547db31fab32863cc4667e2d6897add43016feea1441a6fc5f56. 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/GX4R52481973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95410c6f72877ab4dcc0d70605b41772274eec9790e32eaf6670d08fb4855abc. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:52:45Z), 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/GX4R52447892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ecdcabfa65bb91cd16f713e7eda2bca8f77c31b7f5effbfe277848afa48e35. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QM99V2501101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aaf1a2b688a88a3f40f7b024545efe9c796f7ac7e286225aced0dd62d2ceb16. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QM99V2501103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54155fa20fb6ed5c22e33229943cf769d5136817ff4ff28dcc61f68fd0fe6abf. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QM99V2501104.