Sweet Comfort Band was an American Christian rock band that first performed in 1973 in Riverside, California, and were active until 1984. The band was initially composed of keyboardist/lead vocalist,
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 0x888699e94acabffcf7b7a633af0bd2c0ab84493c4ddae7017a90fb16a947987e. 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/3110183f-ad16-4db4-844b-4619f66c8615.json and https://artists.proofprofile.net/proofs/artist/3110183f-ad16-4db4-844b-4619f66c8615.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 0x1496c01e073e118e04c5e90c69786e66f1a603a71772784df98ffcf6f8ce1a8d. 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/US2CS7800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f48352d782fa72236e4792b5db1ab3e4d71cebe9859ac775d85d67f6cb0a5a. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/US2CS7800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36c79e4a0d8a29f6999916cf62fd6bb5ab04a308385f193f157e1ff95f370fe. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/US2CS7800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bb984748e512cdf8254b685c3a2f0df1726303412a68e00285cffa625e2d52. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/US2CS7800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf9fcde7f0bb84da6ca29ff91583c8029431725b0011f71ad27d4c950f5b1b4. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/US2CS7800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472b2244696e8c0a3ec56f21c7f4cb43d9119fc458351b15636e00bd0d0154ab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USMN20600980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346c8c4a434e3724675c541baace81ca57ede5f9d6b81d87bd01eec8ed880ce0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USMN20600985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b41d605d8e63340613651ee62094de601ab5f24422fb925020c8054f7274131. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USMN20600987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fc309acb5fba271b28c624d62384888d37a2652ef385076775e53fa63f058. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USMN20600988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb242452dcf2442b404bcf7e401affb7591f6e63324432ef2a53ab152c4e6b0e3. 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/USCMG0300467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d6b39b5dfd3eb3089f78bceed1fea35a50159648cd72b36b5152b6a7cf948a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCMG0300469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebd6d4bb20a68d6ac5e77ddb3c2c47ffc045733d8d0731f21f9ea3e5f61d624. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USCMG0300474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef006b3ffb74ccc2dd8724aa14ad9fe4f1237e47eec6f1f61a6928f3d5af145. 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/USCMG0300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb044aadd3d4cc368d5fbd5e3df427c67c976cc139e48b9fe68aa294e1a74a090. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCMG0300476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db584e41c24c1186d0ca1487a53ee1f3183bf3ade5aaa1e7e4797ccf2cbe039. 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/USCMG0300478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7895d7514c1a360689049b6f83dbdaafd11e69fead258c94ba9e336b97523fa. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USCMG0300479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a1f5abb608a17c272b901a6018f97f9e08d1f006f4274daa5d28278b9956ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCMG0300480.
Never Should Have Left You (Prodigal's Regret)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f4d5c93a7cf8127988142901752609af7690294b15f5ee5204a0d225c88876. 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/USCMG0300482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294afbbc2153b8dc1894ef644267966681ea5340ac8392915c56e85c747fc476. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/US2CS8400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22d36693ad17b9285893986b9379435527eb3c42f7037063840807394ecc282. Chain 2 (Bitcoin): anchored in block 958487 (2026-07-18T03:43:59Z), 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/QMJZ31300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8988ad8c1334f315f9a1a09e0d3761d0eb2bc4c8358ce8ff20599d8305245c87. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/QMJZ31300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cd0ac1a799b39560e6a7abf258e40a876b0a36ba35e91daeb97300a5170fac. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/QMJZ31300005.