Frigga may refer to: An anglicized form of the Old Norse goddess name Frigg Frigga (character), a fictional Marvel Comics character based on the Norse goddess - where some aspects of character histo
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 0x373b17f0ba49c2e234e34d257546b3e8539aaaceb71eff9058dacfaa4812d61d. 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/4b0e73f0-7023-477d-81ea-02a4a4ac847a.json and https://artists.proofprofile.net/proofs/artist/4b0e73f0-7023-477d-81ea-02a4a4ac847a.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 0x2665038708539eb4c8f3338062ebd7ff7eec37c4b30e7d1bb44c162716cbceb5. 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/SE5Q51805076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6415ef3f348aeb19e6f25ab8096947cc48a34bfcc180c81bc32b1bdc0fe8841e. 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/SE5Q51806921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e912111ad9ae343aab13239683ab78a3d07e2eaa89643bbd944f9a82f9195e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/SE5Q51825950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0b9b950d007a43fc09ff5411451753979211ef22737375949333cd167d470f. 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/SE5Q51804418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5f8c2dd418fe2d4de42f8f30bf14e667c7385d2cefd69288b51149a4b8419a. 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/SE5Q51824981.
Concrete (SLCT Remix) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46586e5fe86d828b63b7ae494bcff488c764ecee35188444fc6fcbde3e572fa6. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/SE5Q51804290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339dda2ee381a7d49ac27ca8277a3802f335a6bf37c6eb0f39869cd2fe63a508. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/SE5Q51819401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed522a77a507c703ef2ac1a3e09bb710042b5e85c3ac5618542e4adf69c2809. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE5Q51900877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d119a8548278163a71c60fb9f02a7069a5356594756a03e2738c2836e5e584. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/SE5Q51902336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cb72749140ae66482fef2ebfbca4a83fe5d8a4ab9f4bfef82d228df714f822. 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/SE5Q51813221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5df8cf53c81f392530956aad396027c055a30923a3d86a9894fe2a31e60322. 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/SE5Q51800559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2395dc5c5650865f3519de5983a48053d376037ae0cf1fa955c8388e609daef. 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/SE5Q51800560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97aef4bd98abcd3462d94fa0965500df4319a0ced69986b102714923cf194f1. 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/SE5Q51827065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb632085c3cbb6e2cea6744619b26f0b49a321dc548743a92b455c33cb9589b. 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/SE5Q51813117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad046af12fe16bec310eaedebd570e9aa2c51284ca67c95169feacf07891397b. 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/SE5Q51810423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3a2cb196da3af23800e2209492daa656e09b821dfed53e26dcf939ef8fb9ea. 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/SE5Q51828577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcad3982a1aac0a382f7e8c5a5270717f25b98b9cd6018d054aee9c7de0145ce. 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/SE5Q51825577.