Cola is a carbonated soft drink flavored with vanilla, cinnamon, citrus oils, and other flavorings. The name, however, comes from the kola nut (Cola acuminata), which imbues the beverage with caffeine
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 0xe3e1fa679a313c440193afa65e734c3d5cd494969af187fe06f64cc8a1ef7e6d. 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/83adb555-f764-4104-98d6-814580a2c8c1.json and https://artists.proofprofile.net/proofs/artist/83adb555-f764-4104-98d6-814580a2c8c1.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 0x49f827a777476d6b79db952d872e57d8ce37e9252d9512fbb38389359d1d2ff7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USA2B2103857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81871dce0226e1321feb90e2277da1c447b23cd671e2e67fc603eca76ab116e9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USA2B2104398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c22a5b7bfb98af1903bd6f74b6b440632d1d89bfce7ddb37f58a1ec35267b4b. 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/CAO372218201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e2b92087b3be974651eb7a4ea14162b40151031d1a673eb2ee3401d51ea5fe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CAO372218202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a72fe46923aabce1f2f15fbd9758f4973a6f0d8c958b31d3574f472dd1b2c26. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAO372218204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9924b027c48650c511c399513e0ba3f2c62e228f46220d9822ee50d8f03c8b. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/CAO372218205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede039f36794902cd106c295c6c7ddacc9ee101f67bcd38e461356b4dde5415a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CAO372218207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8118ec36bf3ce7f7e10e8aff5bcd963941444c9c69b0218b01941ec283104e5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CAO372218208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ef97b4dae2867c31de78d6dc296426b10cc013004ccbc94f57a8ddb2bec1d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:57:48Z), 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/CAO372218209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadd2c619e22122fda0e2dc8c8f7257cf53def943f64e8d21ee4ece4ea114779. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:17:13Z), 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/USA2B2305126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0ef3958796ca573e9ce0d2696880eed8573c1b62f2645050e3089efb1ee758. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:34:28Z), 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/USA2B2308900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad59ac020faf07075a1d6a5936b609db208bccde2a30938b57ce25720a9f869. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USA2B2320224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d43f679398c2c87624a47d0bdf00640134e55d85cc88f03186c0123f66966a5. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:21:00Z), 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/USA2B2320216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc545c08bf0dce33a1aebf9feceb459c9c21b816f43d47fa51cf07b814dfaac98. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/CAO372434801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce109800303085a67f149c1120269b80fef2fd49ff200d22680a8d5a1cfd6a0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CAO372434802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b56ead76e6dbaa2ff76dc29c237dfbd779a8a3d477414c22059e2f597b5808b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/CAO372320801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e18af1e107be2c387cf17deed7ded4183ab3249edc63ec32cab5888de3b27ad. 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/CAO372434808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26635d5323b794b4ef8a4f4914bcf1465e434585b8b177749eeb574984f9e714. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USA2B2320221.